21001002464

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{133201}}^1$

素因数の和:133603

約数の個数: 48

約数和(自身を含む): 44643982320

約数和(自身を除く): 23642979856

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 379, 416, 758, 1516, 3032, 4927, 6064, 9854, 12128, 19708, 39416, 78832, 133201, 157664, 266402, 532804, 1065608, 1731613, 2131216, 3463226, 4262432, 6926452, 13852904, 27705808, 50483179, 55411616, 100966358, 201932716, 403865432, 656281327, 807730864, 1312562654, 1615461728, 2625125308, 5250250616, 10500501232, 21001002464]

約数ペア:

[(1, 21001002464), (2, 10500501232), (4, 5250250616), (8, 2625125308), (13, 1615461728), (16, 1312562654), (26, 807730864), (32, 656281327), (52, 403865432), (104, 201932716), (208, 100966358), (379, 55411616), (416, 50483179), (758, 27705808), (1516, 13852904), (3032, 6926452), (4927, 4262432), (6064, 3463226), (9854, 2131216), (12128, 1731613), (19708, 1065608), (39416, 532804), (78832, 266402), (133201, 157664)]