20810686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 15114434

約数列:

[1, 2, 13, 17, 26, 34, 197, 221, 239, 394, 442, 478, 2561, 3107, 3349, 4063, 5122, 6214, 6698, 8126, 43537, 47083, 52819, 87074, 94166, 105638, 612079, 800411, 1224158, 1600822, 10405343, 20810686]

約数ペア:

[(1, 20810686), (2, 10405343), (13, 1600822), (17, 1224158), (26, 800411), (34, 612079), (197, 105638), (221, 94166), (239, 87074), (394, 52819), (442, 47083), (478, 43537), (2561, 8126), (3107, 6698), (3349, 6214), (4063, 5122)]