20355874

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:871

約数の個数: 48

約数和(自身を含む): 40481856

約数和(自身を除く): 20125982

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 49, 77, 98, 154, 161, 253, 322, 506, 539, 821, 1078, 1127, 1642, 1771, 2254, 3542, 5747, 9031, 11494, 12397, 18062, 18883, 24794, 37766, 40229, 63217, 80458, 126434, 132181, 207713, 264362, 415426, 442519, 885038, 925267, 1453991, 1850534, 2907982, 10177937, 20355874]

約数ペア:

[(1, 20355874), (2, 10177937), (7, 2907982), (11, 1850534), (14, 1453991), (22, 925267), (23, 885038), (46, 442519), (49, 415426), (77, 264362), (98, 207713), (154, 132181), (161, 126434), (253, 80458), (322, 63217), (506, 40229), (539, 37766), (821, 24794), (1078, 18883), (1127, 18062), (1642, 12397), (1771, 11494), (2254, 9031), (3542, 5747)]