21160250

素因数分解:

$2^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{1597}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 40384656

約数和(自身を除く): 19224406

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 125, 250, 265, 530, 1325, 1597, 2650, 3194, 6625, 7985, 13250, 15970, 39925, 79850, 84641, 169282, 199625, 399250, 423205, 846410, 2116025, 4232050, 10580125, 21160250]

約数ペア:

[(1, 21160250), (2, 10580125), (5, 4232050), (10, 2116025), (25, 846410), (50, 423205), (53, 399250), (106, 199625), (125, 169282), (250, 84641), (265, 79850), (530, 39925), (1325, 15970), (1597, 13250), (2650, 7985), (3194, 6625)]