201991258

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1\times {\mathrm{457}}^1$

素因数の和:838

約数の個数: 32

約数和(自身を含む): 351128448

約数和(自身を除く): 149137190

約数列:

[1, 2, 7, 14, 131, 241, 262, 457, 482, 914, 917, 1687, 1834, 3199, 3374, 6398, 31571, 59867, 63142, 110137, 119734, 220274, 220997, 419069, 441994, 770959, 838138, 1541918, 14427947, 28855894, 100995629, 201991258]

約数ペア:

[(1, 201991258), (2, 100995629), (7, 28855894), (14, 14427947), (131, 1541918), (241, 838138), (262, 770959), (457, 441994), (482, 419069), (914, 220997), (917, 220274), (1687, 119734), (1834, 110137), (3199, 63142), (3374, 59867), (6398, 31571)]