1997955

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1531}}^1$

素因数の和:1571

約数の個数: 24

約数和(自身を含む): 3584880

約数和(自身を除く): 1586925

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 1531, 4593, 7655, 13779, 22965, 44399, 68895, 133197, 221995, 399591, 665985, 1997955]

約数ペア:

[(1, 1997955), (3, 665985), (5, 399591), (9, 221995), (15, 133197), (29, 68895), (45, 44399), (87, 22965), (145, 13779), (261, 7655), (435, 4593), (1305, 1531)]