21051290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1951}}^1$

素因数の和:2054

約数の個数: 32

約数和(自身を含む): 41319936

約数和(自身を除く): 20268646

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 1951, 2158, 3902, 5395, 9755, 10790, 19510, 25363, 50726, 126815, 161933, 253630, 323866, 809665, 1619330, 2105129, 4210258, 10525645, 21051290]

約数ペア:

[(1, 21051290), (2, 10525645), (5, 4210258), (10, 2105129), (13, 1619330), (26, 809665), (65, 323866), (83, 253630), (130, 161933), (166, 126815), (415, 50726), (830, 25363), (1079, 19510), (1951, 10790), (2158, 9755), (3902, 5395)]