21903050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1087}}^1$

素因数の和:1143

約数の個数: 48

約数和(自身を含む): 45330432

約数和(自身を除く): 23427382

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1087, 1550, 2015, 2174, 4030, 5435, 10075, 10870, 14131, 20150, 27175, 28262, 33697, 54350, 67394, 70655, 141310, 168485, 336970, 353275, 438061, 706550, 842425, 876122, 1684850, 2190305, 4380610, 10951525, 21903050]

約数ペア:

[(1, 21903050), (2, 10951525), (5, 4380610), (10, 2190305), (13, 1684850), (25, 876122), (26, 842425), (31, 706550), (50, 438061), (62, 353275), (65, 336970), (130, 168485), (155, 141310), (310, 70655), (325, 67394), (403, 54350), (650, 33697), (775, 28262), (806, 27175), (1087, 20150), (1550, 14131), (2015, 10870), (2174, 10075), (4030, 5435)]