280805721

素因数分解:

$3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{32377}}^1$

素因数の和:32453

約数の個数: 24

約数和(自身を含む): 442931040

約数和(自身を除く): 162125319

約数列:

[1, 3, 7, 21, 49, 59, 147, 177, 413, 1239, 2891, 8673, 32377, 97131, 226639, 679917, 1586473, 1910243, 4759419, 5730729, 13371701, 40115103, 93601907, 280805721]

約数ペア:

[(1, 280805721), (3, 93601907), (7, 40115103), (21, 13371701), (49, 5730729), (59, 4759419), (147, 1910243), (177, 1586473), (413, 679917), (1239, 226639), (2891, 97131), (8673, 32377)]