20728872

素因数分解:

$2^3\times 3^5\times {\mathrm{10663}}^1$

素因数の和:10684

約数の個数: 48

約数和(自身を含む): 58225440

約数和(自身を除く): 37496568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 972, 1944, 10663, 21326, 31989, 42652, 63978, 85304, 95967, 127956, 191934, 255912, 287901, 383868, 575802, 767736, 863703, 1151604, 1727406, 2303208, 2591109, 3454812, 5182218, 6909624, 10364436, 20728872]

約数ペア:

[(1, 20728872), (2, 10364436), (3, 6909624), (4, 5182218), (6, 3454812), (8, 2591109), (9, 2303208), (12, 1727406), (18, 1151604), (24, 863703), (27, 767736), (36, 575802), (54, 383868), (72, 287901), (81, 255912), (108, 191934), (162, 127956), (216, 95967), (243, 85304), (324, 63978), (486, 42652), (648, 31989), (972, 21326), (1944, 10663)]