21167265

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{929}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 19544415

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 49, 93, 105, 147, 155, 217, 245, 465, 651, 735, 929, 1085, 1519, 2787, 3255, 4557, 4645, 6503, 7595, 13935, 19509, 22785, 28799, 32515, 45521, 86397, 97545, 136563, 143995, 201593, 227605, 431985, 604779, 682815, 1007965, 1411151, 3023895, 4233453, 7055755, 21167265]

約数ペア:

[(1, 21167265), (3, 7055755), (5, 4233453), (7, 3023895), (15, 1411151), (21, 1007965), (31, 682815), (35, 604779), (49, 431985), (93, 227605), (105, 201593), (147, 143995), (155, 136563), (217, 97545), (245, 86397), (465, 45521), (651, 32515), (735, 28799), (929, 22785), (1085, 19509), (1519, 13935), (2787, 7595), (3255, 6503), (4557, 4645)]