21272804

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 44083200

約数和(自身を除く): 22810396

約数列:

[1, 2, 4, 7, 14, 28, 59, 79, 118, 158, 163, 236, 316, 326, 413, 553, 652, 826, 1106, 1141, 1652, 2212, 2282, 4564, 4661, 9322, 9617, 12877, 18644, 19234, 25754, 32627, 38468, 51508, 65254, 67319, 90139, 130508, 134638, 180278, 269276, 360556, 759743, 1519486, 3038972, 5318201, 10636402, 21272804]

約数ペア:

[(1, 21272804), (2, 10636402), (4, 5318201), (7, 3038972), (14, 1519486), (28, 759743), (59, 360556), (79, 269276), (118, 180278), (158, 134638), (163, 130508), (236, 90139), (316, 67319), (326, 65254), (413, 51508), (553, 38468), (652, 32627), (826, 25754), (1106, 19234), (1141, 18644), (1652, 12877), (2212, 9617), (2282, 9322), (4564, 4661)]