21447580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{733}}^1$

素因数の和:779

約数の個数: 96

約数和(自身を含む): 59189760

約数和(自身を除く): 37742180

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 133, 140, 154, 190, 209, 220, 266, 308, 380, 385, 418, 532, 665, 733, 770, 836, 1045, 1330, 1463, 1466, 1540, 2090, 2660, 2926, 2932, 3665, 4180, 5131, 5852, 7315, 7330, 8063, 10262, 13927, 14630, 14660, 16126, 20524, 25655, 27854, 29260, 32252, 40315, 51310, 55708, 56441, 69635, 80630, 97489, 102620, 112882, 139270, 153197, 161260, 194978, 225764, 278540, 282205, 306394, 389956, 487445, 564410, 612788, 765985, 974890, 1072379, 1128820, 1531970, 1949780, 2144758, 3063940, 4289516, 5361895, 10723790, 21447580]

約数ペア:

[(1, 21447580), (2, 10723790), (4, 5361895), (5, 4289516), (7, 3063940), (10, 2144758), (11, 1949780), (14, 1531970), (19, 1128820), (20, 1072379), (22, 974890), (28, 765985), (35, 612788), (38, 564410), (44, 487445), (55, 389956), (70, 306394), (76, 282205), (77, 278540), (95, 225764), (110, 194978), (133, 161260), (140, 153197), (154, 139270), (190, 112882), (209, 102620), (220, 97489), (266, 80630), (308, 69635), (380, 56441), (385, 55708), (418, 51310), (532, 40315), (665, 32252), (733, 29260), (770, 27854), (836, 25655), (1045, 20524), (1330, 16126), (1463, 14660), (1466, 14630), (1540, 13927), (2090, 10262), (2660, 8063), (2926, 7330), (2932, 7315), (3665, 5852), (4180, 5131)]