18519369

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 28520448

約数和(自身を除く): 10001079

約数列:

[1, 3, 11, 31, 33, 43, 93, 129, 341, 421, 473, 1023, 1263, 1333, 1419, 3999, 4631, 13051, 13893, 14663, 18103, 39153, 43989, 54309, 143561, 199133, 430683, 561193, 597399, 1683579, 6173123, 18519369]

約数ペア:

[(1, 18519369), (3, 6173123), (11, 1683579), (31, 597399), (33, 561193), (43, 430683), (93, 199133), (129, 143561), (341, 54309), (421, 43989), (473, 39153), (1023, 18103), (1263, 14663), (1333, 13893), (1419, 13051), (3999, 4631)]