21000971710

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{226133}}^1$

素因数の和:226428

約数の個数: 32

約数和(自身を含む): 38978265312

約数和(自身を除く): 17977293602

約数列:

[1, 2, 5, 10, 37, 74, 185, 251, 370, 502, 1255, 2510, 9287, 18574, 46435, 92870, 226133, 452266, 1130665, 2261330, 8366921, 16733842, 41834605, 56759383, 83669210, 113518766, 283796915, 567593830, 2100097171, 4200194342, 10500485855, 21000971710]

約数ペア:

[(1, 21000971710), (2, 10500485855), (5, 4200194342), (10, 2100097171), (37, 567593830), (74, 283796915), (185, 113518766), (251, 83669210), (370, 56759383), (502, 41834605), (1255, 16733842), (2510, 8366921), (9287, 2261330), (18574, 1130665), (46435, 452266), (92870, 226133)]