21738204

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 58902480

約数和(自身を除く): 37164276

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 61, 76, 114, 122, 171, 183, 228, 244, 342, 366, 521, 549, 684, 732, 1042, 1098, 1159, 1563, 2084, 2196, 2318, 3126, 3477, 4636, 4689, 6252, 6954, 9378, 9899, 10431, 13908, 18756, 19798, 20862, 29697, 31781, 39596, 41724, 59394, 63562, 89091, 95343, 118788, 127124, 178182, 190686, 286029, 356364, 381372, 572058, 603839, 1144116, 1207678, 1811517, 2415356, 3623034, 5434551, 7246068, 10869102, 21738204]

約数ペア:

[(1, 21738204), (2, 10869102), (3, 7246068), (4, 5434551), (6, 3623034), (9, 2415356), (12, 1811517), (18, 1207678), (19, 1144116), (36, 603839), (38, 572058), (57, 381372), (61, 356364), (76, 286029), (114, 190686), (122, 178182), (171, 127124), (183, 118788), (228, 95343), (244, 89091), (342, 63562), (366, 59394), (521, 41724), (549, 39596), (684, 31781), (732, 29697), (1042, 20862), (1098, 19798), (1159, 18756), (1563, 13908), (2084, 10431), (2196, 9899), (2318, 9378), (3126, 6954), (3477, 6252), (4636, 4689)]