21237592

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139721}}^1$

素因数の和:139746

約数の個数: 16

約数和(自身を含む): 41916600

約数和(自身を除く): 20679008

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 139721, 279442, 558884, 1117768, 2654699, 5309398, 10618796, 21237592]

約数ペア:

[(1, 21237592), (2, 10618796), (4, 5309398), (8, 2654699), (19, 1117768), (38, 558884), (76, 279442), (152, 139721)]