19185964

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 20811476

約数列:

[1, 2, 4, 7, 14, 28, 47, 61, 94, 122, 188, 239, 244, 329, 427, 478, 658, 854, 956, 1316, 1673, 1708, 2867, 3346, 5734, 6692, 11233, 11468, 14579, 20069, 22466, 29158, 40138, 44932, 58316, 78631, 80276, 102053, 157262, 204106, 314524, 408212, 685213, 1370426, 2740852, 4796491, 9592982, 19185964]

約数ペア:

[(1, 19185964), (2, 9592982), (4, 4796491), (7, 2740852), (14, 1370426), (28, 685213), (47, 408212), (61, 314524), (94, 204106), (122, 157262), (188, 102053), (239, 80276), (244, 78631), (329, 58316), (427, 44932), (478, 40138), (658, 29158), (854, 22466), (956, 20069), (1316, 14579), (1673, 11468), (1708, 11233), (2867, 6692), (3346, 5734)]