21870389892

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{140194807}}^1$

素因数の和:140194827

約数の個数: 24

約数和(自身を含む): 54956364736

約数和(自身を除く): 33085974844

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 140194807, 280389614, 420584421, 560779228, 841168842, 1682337684, 1822532491, 3645064982, 5467597473, 7290129964, 10935194946, 21870389892]

約数ペア:

[(1, 21870389892), (2, 10935194946), (3, 7290129964), (4, 5467597473), (6, 3645064982), (12, 1822532491), (13, 1682337684), (26, 841168842), (39, 560779228), (52, 420584421), (78, 280389614), (156, 140194807)]