21731625

素因数分解:

$3^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 41333760

約数和(自身を除く): 19602135

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 125, 135, 137, 141, 225, 235, 375, 411, 423, 675, 685, 705, 1125, 1175, 1233, 1269, 2055, 2115, 3375, 3425, 3525, 3699, 5875, 6165, 6345, 6439, 10275, 10575, 17125, 17625, 18495, 19317, 30825, 31725, 32195, 51375, 52875, 57951, 92475, 96585, 154125, 158625, 160975, 173853, 289755, 462375, 482925, 804875, 869265, 1448775, 2414625, 4346325, 7243875, 21731625]

約数ペア:

[(1, 21731625), (3, 7243875), (5, 4346325), (9, 2414625), (15, 1448775), (25, 869265), (27, 804875), (45, 482925), (47, 462375), (75, 289755), (125, 173853), (135, 160975), (137, 158625), (141, 154125), (225, 96585), (235, 92475), (375, 57951), (411, 52875), (423, 51375), (675, 32195), (685, 31725), (705, 30825), (1125, 19317), (1175, 18495), (1233, 17625), (1269, 17125), (2055, 10575), (2115, 10275), (3375, 6439), (3425, 6345), (3525, 6165), (3699, 5875)]