21055629

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{467}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 13089651

約数列:

[1, 3, 7, 19, 21, 57, 113, 133, 339, 399, 467, 791, 1401, 2147, 2373, 3269, 6441, 8873, 9807, 15029, 26619, 45087, 52771, 62111, 158313, 186333, 369397, 1002649, 1108191, 3007947, 7018543, 21055629]

約数ペア:

[(1, 21055629), (3, 7018543), (7, 3007947), (19, 1108191), (21, 1002649), (57, 369397), (113, 186333), (133, 158313), (339, 62111), (399, 52771), (467, 45087), (791, 26619), (1401, 15029), (2147, 9807), (2373, 8873), (3269, 6441)]