21370291215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1\times {\mathrm{997}}^1$

素因数の和:1449

約数の個数: 128

約数和(自身を含む): 43265359872

約数和(自身を除く): 21895068657

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 41, 65, 91, 105, 123, 195, 205, 273, 287, 383, 455, 533, 615, 861, 997, 1149, 1365, 1435, 1599, 1915, 2665, 2681, 2991, 3731, 4305, 4979, 4985, 5745, 6979, 7995, 8043, 11193, 12961, 13405, 14937, 14955, 15703, 18655, 20937, 24895, 34853, 34895, 38883, 40215, 40877, 47109, 55965, 64805, 74685, 78515, 90727, 104559, 104685, 109921, 122631, 174265, 194415, 204139, 204385, 235545, 272181, 286139, 329763, 381851, 453635, 522795, 531401, 549605, 612417, 613155, 858417, 1020695, 1145553, 1360905, 1428973, 1430695, 1594203, 1648815, 1909255, 2657005, 2672957, 3062085, 3719807, 4286919, 4292085, 4964063, 5727765, 7144865, 7971015, 8018871, 11159421, 13364785, 14892189, 15655891, 18599035, 21434595, 24820315, 34748441, 40094355, 46967673, 55797105, 74460945, 78279455, 104245323, 109591237, 173742205, 203526583, 234838365, 328773711, 521226615, 547956185, 610579749, 1017632915, 1424686081, 1643868555, 3052898745, 4274058243, 7123430405, 21370291215]

約数ペア:

[(1, 21370291215), (3, 7123430405), (5, 4274058243), (7, 3052898745), (13, 1643868555), (15, 1424686081), (21, 1017632915), (35, 610579749), (39, 547956185), (41, 521226615), (65, 328773711), (91, 234838365), (105, 203526583), (123, 173742205), (195, 109591237), (205, 104245323), (273, 78279455), (287, 74460945), (383, 55797105), (455, 46967673), (533, 40094355), (615, 34748441), (861, 24820315), (997, 21434595), (1149, 18599035), (1365, 15655891), (1435, 14892189), (1599, 13364785), (1915, 11159421), (2665, 8018871), (2681, 7971015), (2991, 7144865), (3731, 5727765), (4305, 4964063), (4979, 4292085), (4985, 4286919), (5745, 3719807), (6979, 3062085), (7995, 2672957), (8043, 2657005), (11193, 1909255), (12961, 1648815), (13405, 1594203), (14937, 1430695), (14955, 1428973), (15703, 1360905), (18655, 1145553), (20937, 1020695), (24895, 858417), (34853, 613155), (34895, 612417), (38883, 549605), (40215, 531401), (40877, 522795), (47109, 453635), (55965, 381851), (64805, 329763), (74685, 286139), (78515, 272181), (90727, 235545), (104559, 204385), (104685, 204139), (109921, 194415), (122631, 174265)]