21062730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1019}}^1$

素因数の和:1095

約数の個数: 64

約数和(自身を含む): 55520640

約数和(自身を除く): 34457910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 65, 78, 106, 130, 159, 195, 265, 318, 390, 530, 689, 795, 1019, 1378, 1590, 2038, 2067, 3057, 3445, 4134, 5095, 6114, 6890, 10190, 10335, 13247, 15285, 20670, 26494, 30570, 39741, 54007, 66235, 79482, 108014, 132470, 162021, 198705, 270035, 324042, 397410, 540070, 702091, 810105, 1404182, 1620210, 2106273, 3510455, 4212546, 7020910, 10531365, 21062730]

約数ペア:

[(1, 21062730), (2, 10531365), (3, 7020910), (5, 4212546), (6, 3510455), (10, 2106273), (13, 1620210), (15, 1404182), (26, 810105), (30, 702091), (39, 540070), (53, 397410), (65, 324042), (78, 270035), (106, 198705), (130, 162021), (159, 132470), (195, 108014), (265, 79482), (318, 66235), (390, 54007), (530, 39741), (689, 30570), (795, 26494), (1019, 20670), (1378, 15285), (1590, 13247), (2038, 10335), (2067, 10190), (3057, 6890), (3445, 6114), (4134, 5095)]