20813988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5801}}^1$

素因数の和:5844

約数の個数: 48

約数和(自身を含む): 54585216

約数和(自身を除く): 33771228

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 276, 299, 598, 897, 1196, 1794, 3588, 5801, 11602, 17403, 23204, 34806, 69612, 75413, 133423, 150826, 226239, 266846, 301652, 400269, 452478, 533692, 800538, 904956, 1601076, 1734499, 3468998, 5203497, 6937996, 10406994, 20813988]

約数ペア:

[(1, 20813988), (2, 10406994), (3, 6937996), (4, 5203497), (6, 3468998), (12, 1734499), (13, 1601076), (23, 904956), (26, 800538), (39, 533692), (46, 452478), (52, 400269), (69, 301652), (78, 266846), (92, 226239), (138, 150826), (156, 133423), (276, 75413), (299, 69612), (598, 34806), (897, 23204), (1196, 17403), (1794, 11602), (3588, 5801)]