19922804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{4007}}^1$

素因数の和:4135

約数の個数: 24

約数和(自身を含む): 38380608

約数和(自身を除く): 18457804

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4007, 4972, 8014, 16028, 44077, 88154, 176308, 452791, 905582, 1811164, 4980701, 9961402, 19922804]

約数ペア:

[(1, 19922804), (2, 9961402), (4, 4980701), (11, 1811164), (22, 905582), (44, 452791), (113, 176308), (226, 88154), (452, 44077), (1243, 16028), (2486, 8014), (4007, 4972)]