20826764

素因数分解:

$2^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1801}}^1$

素因数の和:1878

約数の個数: 36

約数和(自身を含む): 43139880

約数和(自身を除く): 22313116

約数列:

[1, 2, 4, 7, 14, 28, 49, 59, 98, 118, 196, 236, 413, 826, 1652, 1801, 2891, 3602, 5782, 7204, 11564, 12607, 25214, 50428, 88249, 106259, 176498, 212518, 352996, 425036, 743813, 1487626, 2975252, 5206691, 10413382, 20826764]

約数ペア:

[(1, 20826764), (2, 10413382), (4, 5206691), (7, 2975252), (14, 1487626), (28, 743813), (49, 425036), (59, 352996), (98, 212518), (118, 176498), (196, 106259), (236, 88249), (413, 50428), (826, 25214), (1652, 12607), (1801, 11564), (2891, 7204), (3602, 5782)]