21720072

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2837}}^1$

素因数の和:2886

約数の個数: 64

約数和(自身を含む): 61300800

約数和(自身を除く): 39580728

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 29, 33, 44, 58, 66, 87, 88, 116, 132, 174, 232, 264, 319, 348, 638, 696, 957, 1276, 1914, 2552, 2837, 3828, 5674, 7656, 8511, 11348, 17022, 22696, 31207, 34044, 62414, 68088, 82273, 93621, 124828, 164546, 187242, 246819, 249656, 329092, 374484, 493638, 658184, 748968, 905003, 987276, 1810006, 1974552, 2715009, 3620012, 5430018, 7240024, 10860036, 21720072]

約数ペア:

[(1, 21720072), (2, 10860036), (3, 7240024), (4, 5430018), (6, 3620012), (8, 2715009), (11, 1974552), (12, 1810006), (22, 987276), (24, 905003), (29, 748968), (33, 658184), (44, 493638), (58, 374484), (66, 329092), (87, 249656), (88, 246819), (116, 187242), (132, 164546), (174, 124828), (232, 93621), (264, 82273), (319, 68088), (348, 62414), (638, 34044), (696, 31207), (957, 22696), (1276, 17022), (1914, 11348), (2552, 8511), (2837, 7656), (3828, 5674)]