21010600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8081}}^1$

素因数の和:8110

約数の個数: 48

約数和(自身を含む): 52613820

約数和(自身を除く): 31603220

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 8081, 16162, 32324, 40405, 64648, 80810, 105053, 161620, 202025, 210106, 323240, 404050, 420212, 525265, 808100, 840424, 1050530, 1616200, 2101060, 2626325, 4202120, 5252650, 10505300, 21010600]

約数ペア:

[(1, 21010600), (2, 10505300), (4, 5252650), (5, 4202120), (8, 2626325), (10, 2101060), (13, 1616200), (20, 1050530), (25, 840424), (26, 808100), (40, 525265), (50, 420212), (52, 404050), (65, 323240), (100, 210106), (104, 202025), (130, 161620), (200, 105053), (260, 80810), (325, 64648), (520, 40405), (650, 32324), (1300, 16162), (2600, 8081)]