201784401

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 371762664

約数和(自身を除く): 169978263

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 61, 63, 91, 117, 147, 183, 273, 427, 441, 549, 577, 637, 793, 819, 1281, 1731, 1911, 2379, 2989, 3843, 4039, 5193, 5551, 5733, 7137, 7501, 8967, 12117, 16653, 22503, 26901, 28273, 35197, 36351, 38857, 49959, 52507, 67509, 84819, 105591, 116571, 157521, 246379, 254457, 316773, 349713, 367549, 457561, 472563, 739137, 1102647, 1372683, 1724653, 2217411, 3202927, 3307941, 4118049, 5173959, 9608781, 15521877, 22420489, 28826343, 67261467, 201784401]

約数ペア:

[(1, 201784401), (3, 67261467), (7, 28826343), (9, 22420489), (13, 15521877), (21, 9608781), (39, 5173959), (49, 4118049), (61, 3307941), (63, 3202927), (91, 2217411), (117, 1724653), (147, 1372683), (183, 1102647), (273, 739137), (427, 472563), (441, 457561), (549, 367549), (577, 349713), (637, 316773), (793, 254457), (819, 246379), (1281, 157521), (1731, 116571), (1911, 105591), (2379, 84819), (2989, 67509), (3843, 52507), (4039, 49959), (5193, 38857), (5551, 36351), (5733, 35197), (7137, 28273), (7501, 26901), (8967, 22503), (12117, 16653)]