21302240

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4591}}^1$

素因数の和:4635

約数の個数: 48

約数和(自身を含む): 52073280

約数和(自身を除く): 30771040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4591, 4640, 9182, 18364, 22955, 36728, 45910, 73456, 91820, 133139, 146912, 183640, 266278, 367280, 532556, 665695, 734560, 1065112, 1331390, 2130224, 2662780, 4260448, 5325560, 10651120, 21302240]

約数ペア:

[(1, 21302240), (2, 10651120), (4, 5325560), (5, 4260448), (8, 2662780), (10, 2130224), (16, 1331390), (20, 1065112), (29, 734560), (32, 665695), (40, 532556), (58, 367280), (80, 266278), (116, 183640), (145, 146912), (160, 133139), (232, 91820), (290, 73456), (464, 45910), (580, 36728), (928, 22955), (1160, 18364), (2320, 9182), (4591, 4640)]