19805128

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4261}}^1$

素因数の和:4357

約数の個数: 32

約数和(自身を含む): 42960960

約数和(自身を除く): 23155832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 4261, 4648, 8522, 17044, 29827, 34088, 59654, 119308, 238616, 353663, 707326, 1414652, 2475641, 2829304, 4951282, 9902564, 19805128]

約数ペア:

[(1, 19805128), (2, 9902564), (4, 4951282), (7, 2829304), (8, 2475641), (14, 1414652), (28, 707326), (56, 353663), (83, 238616), (166, 119308), (332, 59654), (581, 34088), (664, 29827), (1162, 17044), (2324, 8522), (4261, 4648)]