21000585944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1667}}^1\times {\mathrm{4177}}^1$

素因数の和:5892

約数の個数: 64

約数和(自身を含む): 43904095200

約数和(自身を除く): 22903509256

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 1667, 3016, 3334, 4177, 6668, 8354, 13336, 16708, 21671, 33416, 43342, 48343, 54301, 86684, 96686, 108602, 121133, 173368, 193372, 217204, 242266, 386744, 434408, 484532, 628459, 969064, 1256918, 1574729, 2513836, 3149458, 5027672, 6298916, 6963059, 12597832, 13926118, 27852236, 55704472, 90519767, 181039534, 201928711, 362079068, 403857422, 724158136, 807714844, 1615429688, 2625073243, 5250146486, 10500292972, 21000585944]

約数ペア:

[(1, 21000585944), (2, 10500292972), (4, 5250146486), (8, 2625073243), (13, 1615429688), (26, 807714844), (29, 724158136), (52, 403857422), (58, 362079068), (104, 201928711), (116, 181039534), (232, 90519767), (377, 55704472), (754, 27852236), (1508, 13926118), (1667, 12597832), (3016, 6963059), (3334, 6298916), (4177, 5027672), (6668, 3149458), (8354, 2513836), (13336, 1574729), (16708, 1256918), (21671, 969064), (33416, 628459), (43342, 484532), (48343, 434408), (54301, 386744), (86684, 242266), (96686, 217204), (108602, 193372), (121133, 173368)]