20688520617

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{7219}}^1\times {\mathrm{18731}}^1$

素因数の和:25973

約数の個数: 24

約数和(自身を含む): 31647339360

約数和(自身を除く): 10958818743

約数列:

[1, 3, 9, 17, 51, 153, 7219, 18731, 21657, 56193, 64971, 122723, 168579, 318427, 368169, 955281, 1104507, 2865843, 135219089, 405657267, 1216971801, 2298724513, 6896173539, 20688520617]

約数ペア:

[(1, 20688520617), (3, 6896173539), (9, 2298724513), (17, 1216971801), (51, 405657267), (153, 135219089), (7219, 2865843), (18731, 1104507), (21657, 955281), (56193, 368169), (64971, 318427), (122723, 168579)]