20949885

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42323}}^1$

素因数の和:42345

約数の個数: 24

約数和(自身を含む): 39615264

約数和(自身を除く): 18665379

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42323, 126969, 211615, 380907, 465553, 634845, 1396659, 1904535, 2327765, 4189977, 6983295, 20949885]

約数ペア:

[(1, 20949885), (3, 6983295), (5, 4189977), (9, 2327765), (11, 1904535), (15, 1396659), (33, 634845), (45, 465553), (55, 380907), (99, 211615), (165, 126969), (495, 42323)]