21332330

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 39312000

約数和(自身を除く): 17979670

約数列:

[1, 2, 5, 10, 103, 139, 149, 206, 278, 298, 515, 695, 745, 1030, 1390, 1490, 14317, 15347, 20711, 28634, 30694, 41422, 71585, 76735, 103555, 143170, 153470, 207110, 2133233, 4266466, 10666165, 21332330]

約数ペア:

[(1, 21332330), (2, 10666165), (5, 4266466), (10, 2133233), (103, 207110), (139, 153470), (149, 143170), (206, 103555), (278, 76735), (298, 71585), (515, 41422), (695, 30694), (745, 28634), (1030, 20711), (1390, 15347), (1490, 14317)]