20687656

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12373}}^1$

素因数の和:12409

約数の個数: 32

約数和(自身を含む): 44546400

約数和(自身を除く): 23858744

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12373, 24746, 49492, 98984, 136103, 235087, 272206, 470174, 544412, 940348, 1088824, 1880696, 2585957, 5171914, 10343828, 20687656]

約数ペア:

[(1, 20687656), (2, 10343828), (4, 5171914), (8, 2585957), (11, 1880696), (19, 1088824), (22, 940348), (38, 544412), (44, 470174), (76, 272206), (88, 235087), (152, 136103), (209, 98984), (418, 49492), (836, 24746), (1672, 12373)]