21702375

素因数分解:

$3^2\times 5^3\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 39716352

約数和(自身を除く): 18013977

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 101, 125, 191, 225, 303, 375, 505, 573, 909, 955, 1125, 1515, 1719, 2525, 2865, 4545, 4775, 7575, 8595, 12625, 14325, 19291, 22725, 23875, 37875, 42975, 57873, 71625, 96455, 113625, 173619, 214875, 289365, 482275, 868095, 1446825, 2411375, 4340475, 7234125, 21702375]

約数ペア:

[(1, 21702375), (3, 7234125), (5, 4340475), (9, 2411375), (15, 1446825), (25, 868095), (45, 482275), (75, 289365), (101, 214875), (125, 173619), (191, 113625), (225, 96455), (303, 71625), (375, 57873), (505, 42975), (573, 37875), (909, 23875), (955, 22725), (1125, 19291), (1515, 14325), (1719, 12625), (2525, 8595), (2865, 7575), (4545, 4775)]