20414985

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 34318080

約数和(自身を除く): 13903095

約数列:

[1, 3, 5, 15, 29, 71, 87, 145, 213, 355, 435, 661, 1065, 1983, 2059, 3305, 6177, 9915, 10295, 19169, 30885, 46931, 57507, 95845, 140793, 234655, 287535, 703965, 1360999, 4082997, 6804995, 20414985]

約数ペア:

[(1, 20414985), (3, 6804995), (5, 4082997), (15, 1360999), (29, 703965), (71, 287535), (87, 234655), (145, 140793), (213, 95845), (355, 57507), (435, 46931), (661, 30885), (1065, 19169), (1983, 10295), (2059, 9915), (3305, 6177)]