21098670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1087}}^1$

素因数の和:1744

約数の個数: 32

約数和(自身を含む): 50761728

約数和(自身を除く): 29663058

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 647, 1087, 1294, 1941, 2174, 3235, 3261, 3882, 5435, 6470, 6522, 9705, 10870, 16305, 19410, 32610, 703289, 1406578, 2109867, 3516445, 4219734, 7032890, 10549335, 21098670]

約数ペア:

[(1, 21098670), (2, 10549335), (3, 7032890), (5, 4219734), (6, 3516445), (10, 2109867), (15, 1406578), (30, 703289), (647, 32610), (1087, 19410), (1294, 16305), (1941, 10870), (2174, 9705), (3235, 6522), (3261, 6470), (3882, 5435)]