21082518

素因数分解:

$2^1\times 3^4\times {\mathrm{181}}^1\times {\mathrm{719}}^1$

素因数の和:914

約数の個数: 40

約数和(自身を含む): 47567520

約数和(自身を除く): 26485002

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 181, 362, 543, 719, 1086, 1438, 1629, 2157, 3258, 4314, 4887, 6471, 9774, 12942, 14661, 19413, 29322, 38826, 58239, 116478, 130139, 260278, 390417, 780834, 1171251, 2342502, 3513753, 7027506, 10541259, 21082518]

約数ペア:

[(1, 21082518), (2, 10541259), (3, 7027506), (6, 3513753), (9, 2342502), (18, 1171251), (27, 780834), (54, 390417), (81, 260278), (162, 130139), (181, 116478), (362, 58239), (543, 38826), (719, 29322), (1086, 19413), (1438, 14661), (1629, 12942), (2157, 9774), (3258, 6471), (4314, 4887)]