21797955

素因数分解:

$3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3251}}^1$

素因数の和:3411

約数の個数: 24

約数和(自身を含む): 38048400

約数和(自身を除く): 16250445

約数列:

[1, 3, 5, 9, 15, 45, 149, 447, 745, 1341, 2235, 3251, 6705, 9753, 16255, 29259, 48765, 146295, 484399, 1453197, 2421995, 4359591, 7265985, 21797955]

約数ペア:

[(1, 21797955), (3, 7265985), (5, 4359591), (9, 2421995), (15, 1453197), (45, 484399), (149, 146295), (447, 48765), (745, 29259), (1341, 16255), (2235, 9753), (3251, 6705)]