19672432

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{349}}^1$

素因数の和:641

約数の個数: 40

約数和(自身を含む): 41316800

約数和(自身を除く): 21644368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 271, 349, 542, 698, 1084, 1396, 2168, 2792, 3523, 4336, 4537, 5584, 7046, 9074, 14092, 18148, 28184, 36296, 56368, 72592, 94579, 189158, 378316, 756632, 1229527, 1513264, 2459054, 4918108, 9836216, 19672432]

約数ペア:

[(1, 19672432), (2, 9836216), (4, 4918108), (8, 2459054), (13, 1513264), (16, 1229527), (26, 756632), (52, 378316), (104, 189158), (208, 94579), (271, 72592), (349, 56368), (542, 36296), (698, 28184), (1084, 18148), (1396, 14092), (2168, 9074), (2792, 7046), (3523, 5584), (4336, 4537)]