21418358

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{227}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15353482

約数列:

[1, 2, 13, 19, 26, 38, 191, 227, 247, 382, 454, 494, 2483, 2951, 3629, 4313, 4966, 5902, 7258, 8626, 43357, 47177, 56069, 86714, 94354, 112138, 563641, 823783, 1127282, 1647566, 10709179, 21418358]

約数ペア:

[(1, 21418358), (2, 10709179), (13, 1647566), (19, 1127282), (26, 823783), (38, 563641), (191, 112138), (227, 94354), (247, 86714), (382, 56069), (454, 47177), (494, 43357), (2483, 8626), (2951, 7258), (3629, 5902), (4313, 4966)]