21391618

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{1931}}^1$

素因数の和:2153

約数の個数: 16

約数和(自身を含む): 33384960

約数和(自身を除く): 11993342

約数列:

[1, 2, 29, 58, 191, 382, 1931, 3862, 5539, 11078, 55999, 111998, 368821, 737642, 10695809, 21391618]

約数ペア:

[(1, 21391618), (2, 10695809), (29, 737642), (58, 368821), (191, 111998), (382, 55999), (1931, 11078), (3862, 5539)]