21789780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4597}}^1$

素因数の和:4688

約数の個数: 48

約数和(自身を含む): 61797120

約数和(自身を除く): 40007340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4597, 4740, 9194, 13791, 18388, 22985, 27582, 45970, 55164, 68955, 91940, 137910, 275820, 363163, 726326, 1089489, 1452652, 1815815, 2178978, 3631630, 4357956, 5447445, 7263260, 10894890, 21789780]

約数ペア:

[(1, 21789780), (2, 10894890), (3, 7263260), (4, 5447445), (5, 4357956), (6, 3631630), (10, 2178978), (12, 1815815), (15, 1452652), (20, 1089489), (30, 726326), (60, 363163), (79, 275820), (158, 137910), (237, 91940), (316, 68955), (395, 55164), (474, 45970), (790, 27582), (948, 22985), (1185, 18388), (1580, 13791), (2370, 9194), (4597, 4740)]