21887450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:399

約数の個数: 48

約数和(自身を含む): 44330496

約数和(自身を除く): 22443046

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 151, 223, 302, 325, 446, 650, 755, 1115, 1510, 1963, 2230, 2899, 3775, 3926, 5575, 5798, 7550, 9815, 11150, 14495, 19630, 28990, 33673, 49075, 67346, 72475, 98150, 144950, 168365, 336730, 437749, 841825, 875498, 1683650, 2188745, 4377490, 10943725, 21887450]

約数ペア:

[(1, 21887450), (2, 10943725), (5, 4377490), (10, 2188745), (13, 1683650), (25, 875498), (26, 841825), (50, 437749), (65, 336730), (130, 168365), (151, 144950), (223, 98150), (302, 72475), (325, 67346), (446, 49075), (650, 33673), (755, 28990), (1115, 19630), (1510, 14495), (1963, 11150), (2230, 9815), (2899, 7550), (3775, 5798), (3926, 5575)]