21587250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 54587520

約数和(自身を除く): 33000270

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 107, 125, 150, 214, 250, 269, 321, 375, 535, 538, 642, 750, 807, 1070, 1345, 1605, 1614, 2675, 2690, 3210, 4035, 5350, 6725, 8025, 8070, 13375, 13450, 16050, 20175, 26750, 28783, 33625, 40125, 40350, 57566, 67250, 80250, 86349, 100875, 143915, 172698, 201750, 287830, 431745, 719575, 863490, 1439150, 2158725, 3597875, 4317450, 7195750, 10793625, 21587250]

約数ペア:

[(1, 21587250), (2, 10793625), (3, 7195750), (5, 4317450), (6, 3597875), (10, 2158725), (15, 1439150), (25, 863490), (30, 719575), (50, 431745), (75, 287830), (107, 201750), (125, 172698), (150, 143915), (214, 100875), (250, 86349), (269, 80250), (321, 67250), (375, 57566), (535, 40350), (538, 40125), (642, 33625), (750, 28783), (807, 26750), (1070, 20175), (1345, 16050), (1605, 13450), (1614, 13375), (2675, 8070), (2690, 8025), (3210, 6725), (4035, 5350)]