21000723292790

素因数分解:

$2^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{580747}}^1\times {\mathrm{14407}}^1$

素因数の和:595412

約数の個数: 32

約数和(自身を含む): 37954604346624

約数和(自身を除く): 16953881053834

約数列:

[1, 2, 5, 10, 251, 502, 1255, 2510, 14407, 28814, 72035, 144070, 580747, 1161494, 2903735, 3616157, 5807470, 7232314, 18080785, 36161570, 145767497, 291534994, 728837485, 1457674970, 8366822029, 16733644058, 41834110145, 83668220290, 2100072329279, 4200144658558, 10500361646395, 21000723292790]

約数ペア:

[(1, 21000723292790), (2, 10500361646395), (5, 4200144658558), (10, 2100072329279), (251, 83668220290), (502, 41834110145), (1255, 16733644058), (2510, 8366822029), (14407, 1457674970), (28814, 728837485), (72035, 291534994), (144070, 145767497), (580747, 36161570), (1161494, 18080785), (2903735, 7232314), (3616157, 5807470)]