21491414805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{139}}^1\times {\mathrm{4079}}^1$

素因数の和:4271

約数の個数: 96

約数和(自身を含む): 41784422400

約数和(自身を除く): 20293007595

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 139, 285, 361, 399, 417, 665, 695, 973, 1083, 1805, 1995, 2085, 2527, 2641, 2919, 4079, 4865, 5415, 7581, 7923, 12237, 12635, 13205, 14595, 18487, 20395, 28553, 37905, 39615, 50179, 55461, 61185, 77501, 85659, 92435, 142765, 150537, 232503, 250895, 277305, 351253, 387505, 428295, 542507, 566981, 752685, 1053759, 1162515, 1472519, 1627521, 1700943, 1756265, 2712535, 2834905, 3968867, 4417557, 5268795, 7362595, 8137605, 8504715, 10307633, 10772639, 11906601, 19844335, 22087785, 30922899, 32317917, 51538165, 53863195, 59533005, 75408473, 154614495, 161589585, 204680141, 226225419, 377042365, 614040423, 1023400705, 1131127095, 1432760987, 3070202115, 4298282961, 7163804935, 21491414805]

約数ペア:

[(1, 21491414805), (3, 7163804935), (5, 4298282961), (7, 3070202115), (15, 1432760987), (19, 1131127095), (21, 1023400705), (35, 614040423), (57, 377042365), (95, 226225419), (105, 204680141), (133, 161589585), (139, 154614495), (285, 75408473), (361, 59533005), (399, 53863195), (417, 51538165), (665, 32317917), (695, 30922899), (973, 22087785), (1083, 19844335), (1805, 11906601), (1995, 10772639), (2085, 10307633), (2527, 8504715), (2641, 8137605), (2919, 7362595), (4079, 5268795), (4865, 4417557), (5415, 3968867), (7581, 2834905), (7923, 2712535), (12237, 1756265), (12635, 1700943), (13205, 1627521), (14595, 1472519), (18487, 1162515), (20395, 1053759), (28553, 752685), (37905, 566981), (39615, 542507), (50179, 428295), (55461, 387505), (61185, 351253), (77501, 277305), (85659, 250895), (92435, 232503), (142765, 150537)]