20753128

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2087}}^1$

素因数の和:2217

約数の個数: 32

約数和(自身を含む): 42845760

約数和(自身を除く): 22092632

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 113, 226, 452, 904, 1243, 2087, 2486, 4174, 4972, 8348, 9944, 16696, 22957, 45914, 91828, 183656, 235831, 471662, 943324, 1886648, 2594141, 5188282, 10376564, 20753128]

約数ペア:

[(1, 20753128), (2, 10376564), (4, 5188282), (8, 2594141), (11, 1886648), (22, 943324), (44, 471662), (88, 235831), (113, 183656), (226, 91828), (452, 45914), (904, 22957), (1243, 16696), (2087, 9944), (2486, 8348), (4174, 4972)]