21429772

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{521}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 46654272

約数和(自身を除く): 25224500

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 113, 182, 226, 364, 452, 521, 791, 1042, 1469, 1582, 2084, 2938, 3164, 3647, 5876, 6773, 7294, 10283, 13546, 14588, 20566, 27092, 41132, 47411, 58873, 94822, 117746, 189644, 235492, 412111, 765349, 824222, 1530698, 1648444, 3061396, 5357443, 10714886, 21429772]

約数ペア:

[(1, 21429772), (2, 10714886), (4, 5357443), (7, 3061396), (13, 1648444), (14, 1530698), (26, 824222), (28, 765349), (52, 412111), (91, 235492), (113, 189644), (182, 117746), (226, 94822), (364, 58873), (452, 47411), (521, 41132), (791, 27092), (1042, 20566), (1469, 14588), (1582, 13546), (2084, 10283), (2938, 7294), (3164, 6773), (3647, 5876)]