21335472

素因数分解:

$2^4\times 3^2\times {\mathrm{229}}^1\times {\mathrm{647}}^1$

素因数の和:890

約数の個数: 60

約数和(自身を含む): 60063120

約数和(自身を除く): 38727648

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 229, 458, 647, 687, 916, 1294, 1374, 1832, 1941, 2061, 2588, 2748, 3664, 3882, 4122, 5176, 5496, 5823, 7764, 8244, 10352, 10992, 11646, 15528, 16488, 23292, 31056, 32976, 46584, 93168, 148163, 296326, 444489, 592652, 888978, 1185304, 1333467, 1777956, 2370608, 2666934, 3555912, 5333868, 7111824, 10667736, 21335472]

約数ペア:

[(1, 21335472), (2, 10667736), (3, 7111824), (4, 5333868), (6, 3555912), (8, 2666934), (9, 2370608), (12, 1777956), (16, 1333467), (18, 1185304), (24, 888978), (36, 592652), (48, 444489), (72, 296326), (144, 148163), (229, 93168), (458, 46584), (647, 32976), (687, 31056), (916, 23292), (1294, 16488), (1374, 15528), (1832, 11646), (1941, 10992), (2061, 10352), (2588, 8244), (2748, 7764), (3664, 5823), (3882, 5496), (4122, 5176)]