21840804870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1\times {\mathrm{30427}}^1$

素因数の和:30845

約数の個数: 64

約数和(自身を含む): 53315698176

約数和(自身を除く): 31474893306

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 337, 355, 426, 674, 710, 1011, 1065, 1685, 2022, 2130, 3370, 5055, 10110, 23927, 30427, 47854, 60854, 71781, 91281, 119635, 143562, 152135, 182562, 239270, 304270, 358905, 456405, 717810, 912810, 2160317, 4320634, 6480951, 10253899, 10801585, 12961902, 20507798, 21603170, 30761697, 32404755, 51269495, 61523394, 64809510, 102538990, 153808485, 307616970, 728026829, 1456053658, 2184080487, 3640134145, 4368160974, 7280268290, 10920402435, 21840804870]

約数ペア:

[(1, 21840804870), (2, 10920402435), (3, 7280268290), (5, 4368160974), (6, 3640134145), (10, 2184080487), (15, 1456053658), (30, 728026829), (71, 307616970), (142, 153808485), (213, 102538990), (337, 64809510), (355, 61523394), (426, 51269495), (674, 32404755), (710, 30761697), (1011, 21603170), (1065, 20507798), (1685, 12961902), (2022, 10801585), (2130, 10253899), (3370, 6480951), (5055, 4320634), (10110, 2160317), (23927, 912810), (30427, 717810), (47854, 456405), (60854, 358905), (71781, 304270), (91281, 239270), (119635, 182562), (143562, 152135)]