20215845

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11519}}^1$

素因数の和:11546

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 18491355

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11519, 34557, 57595, 103671, 149747, 172785, 311013, 449241, 518355, 748735, 1347723, 1555065, 2246205, 4043169, 6738615, 20215845]

約数ペア:

[(1, 20215845), (3, 6738615), (5, 4043169), (9, 2246205), (13, 1555065), (15, 1347723), (27, 748735), (39, 518355), (45, 449241), (65, 311013), (117, 172785), (135, 149747), (195, 103671), (351, 57595), (585, 34557), (1755, 11519)]