18878524

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1579}}^1$

素因数の和:1658

約数の個数: 36

約数和(自身を含む): 39086040

約数和(自身を除く): 20207516

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1579, 1708, 2989, 3158, 5978, 6316, 11053, 11956, 22106, 44212, 77371, 96319, 154742, 192638, 309484, 385276, 674233, 1348466, 2696932, 4719631, 9439262, 18878524]

約数ペア:

[(1, 18878524), (2, 9439262), (4, 4719631), (7, 2696932), (14, 1348466), (28, 674233), (49, 385276), (61, 309484), (98, 192638), (122, 154742), (196, 96319), (244, 77371), (427, 44212), (854, 22106), (1579, 11956), (1708, 11053), (2989, 6316), (3158, 5978)]