21240696

素因数分解:

$2^3\times 3^1\times {\mathrm{83}}^1\times {\mathrm{10663}}^1$

素因数の和:10755

約数の個数: 32

約数和(自身を含む): 53746560

約数和(自身を除く): 32505864

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 83, 166, 249, 332, 498, 664, 996, 1992, 10663, 21326, 31989, 42652, 63978, 85304, 127956, 255912, 885029, 1770058, 2655087, 3540116, 5310174, 7080232, 10620348, 21240696]

約数ペア:

[(1, 21240696), (2, 10620348), (3, 7080232), (4, 5310174), (6, 3540116), (8, 2655087), (12, 1770058), (24, 885029), (83, 255912), (166, 127956), (249, 85304), (332, 63978), (498, 42652), (664, 31989), (996, 21326), (1992, 10663)]