215501116

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{149239}}^1$

素因数の和:149281

約数の個数: 18

約数和(自身を含む): 398023080

約数和(自身を除く): 182521964

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 149239, 298478, 596956, 2835541, 5671082, 11342164, 53875279, 107750558, 215501116]

約数ペア:

[(1, 215501116), (2, 107750558), (4, 53875279), (19, 11342164), (38, 5671082), (76, 2835541), (361, 596956), (722, 298478), (1444, 149239)]