20822109

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 35896320

約数和(自身を除く): 15074211

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 79, 147, 163, 231, 237, 489, 539, 553, 869, 1141, 1617, 1659, 1793, 2607, 3423, 3871, 5379, 6083, 7987, 11613, 12551, 12877, 18249, 23961, 37653, 38631, 42581, 87857, 90139, 127743, 141647, 263571, 270417, 424941, 630973, 991529, 1892919, 2974587, 6940703, 20822109]

約数ペア:

[(1, 20822109), (3, 6940703), (7, 2974587), (11, 1892919), (21, 991529), (33, 630973), (49, 424941), (77, 270417), (79, 263571), (147, 141647), (163, 127743), (231, 90139), (237, 87857), (489, 42581), (539, 38631), (553, 37653), (869, 23961), (1141, 18249), (1617, 12877), (1659, 12551), (1793, 11613), (2607, 7987), (3423, 6083), (3871, 5379)]