21638266

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 36465408

約数和(自身を除く): 14827142

約数列:

[1, 2, 13, 26, 37, 74, 83, 166, 271, 481, 542, 962, 1079, 2158, 3071, 3523, 6142, 7046, 10027, 20054, 22493, 39923, 44986, 79846, 130351, 260702, 292409, 584818, 832241, 1664482, 10819133, 21638266]

約数ペア:

[(1, 21638266), (2, 10819133), (13, 1664482), (26, 832241), (37, 584818), (74, 292409), (83, 260702), (166, 130351), (271, 79846), (481, 44986), (542, 39923), (962, 22493), (1079, 20054), (2158, 10027), (3071, 7046), (3523, 6142)]