20688378

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1049}}^1$

素因数の和:1246

約数の個数: 32

約数和(自身を含む): 43848000

約数和(自身を除く): 23159622

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 173, 346, 519, 1038, 1049, 2098, 3147, 3287, 6294, 6574, 9861, 19722, 19931, 39862, 59793, 119586, 181477, 362954, 544431, 1088862, 3448063, 6896126, 10344189, 20688378]

約数ペア:

[(1, 20688378), (2, 10344189), (3, 6896126), (6, 3448063), (19, 1088862), (38, 544431), (57, 362954), (114, 181477), (173, 119586), (346, 59793), (519, 39862), (1038, 19931), (1049, 19722), (2098, 9861), (3147, 6574), (3287, 6294)]