21447660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{887}}^1$

素因数の和:943

約数の個数: 96

約数和(自身を含む): 66834432

約数和(自身を除く): 45386772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 887, 930, 1209, 1612, 1774, 1860, 2015, 2418, 2661, 3548, 4030, 4435, 4836, 5322, 6045, 8060, 8870, 10644, 11531, 12090, 13305, 17740, 23062, 24180, 26610, 27497, 34593, 46124, 53220, 54994, 57655, 69186, 82491, 109988, 115310, 137485, 138372, 164982, 172965, 230620, 274970, 329964, 345930, 357461, 412455, 549940, 691860, 714922, 824910, 1072383, 1429844, 1649820, 1787305, 2144766, 3574610, 4289532, 5361915, 7149220, 10723830, 21447660]

約数ペア:

[(1, 21447660), (2, 10723830), (3, 7149220), (4, 5361915), (5, 4289532), (6, 3574610), (10, 2144766), (12, 1787305), (13, 1649820), (15, 1429844), (20, 1072383), (26, 824910), (30, 714922), (31, 691860), (39, 549940), (52, 412455), (60, 357461), (62, 345930), (65, 329964), (78, 274970), (93, 230620), (124, 172965), (130, 164982), (155, 138372), (156, 137485), (186, 115310), (195, 109988), (260, 82491), (310, 69186), (372, 57655), (390, 54994), (403, 53220), (465, 46124), (620, 34593), (780, 27497), (806, 26610), (887, 24180), (930, 23062), (1209, 17740), (1612, 13305), (1774, 12090), (1860, 11531), (2015, 10644), (2418, 8870), (2661, 8060), (3548, 6045), (4030, 5322), (4435, 4836)]