21057430

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{593}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 39261024

約数和(自身を除く): 18203594

約数列:

[1, 2, 5, 10, 53, 67, 106, 134, 265, 335, 530, 593, 670, 1186, 2965, 3551, 5930, 7102, 17755, 31429, 35510, 39731, 62858, 79462, 157145, 198655, 314290, 397310, 2105743, 4211486, 10528715, 21057430]

約数ペア:

[(1, 21057430), (2, 10528715), (5, 4211486), (10, 2105743), (53, 397310), (67, 314290), (106, 198655), (134, 157145), (265, 79462), (335, 62858), (530, 39731), (593, 35510), (670, 31429), (1186, 17755), (2965, 7102), (3551, 5930)]