20924696

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1163}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 42532560

約数和(自身を除く): 21607864

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 692, 1163, 1384, 2249, 2326, 4498, 4652, 8996, 9304, 15119, 17992, 30238, 60476, 120952, 201199, 402398, 804796, 1609592, 2615587, 5231174, 10462348, 20924696]

約数ペア:

[(1, 20924696), (2, 10462348), (4, 5231174), (8, 2615587), (13, 1609592), (26, 804796), (52, 402398), (104, 201199), (173, 120952), (346, 60476), (692, 30238), (1163, 17992), (1384, 15119), (2249, 9304), (2326, 8996), (4498, 4652)]