18715996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{6791}}^1$

素因数の和:6861

約数の個数: 24

約数和(自身を含む): 35943264

約数和(自身を除く): 17227268

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 6791, 13582, 27164, 88283, 176566, 353132, 359923, 719846, 1439692, 4678999, 9357998, 18715996]

約数ペア:

[(1, 18715996), (2, 9357998), (4, 4678999), (13, 1439692), (26, 719846), (52, 359923), (53, 353132), (106, 176566), (212, 88283), (689, 27164), (1378, 13582), (2756, 6791)]