18219825

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{6229}}^1$

素因数の和:6258

約数の個数: 36

約数和(自身を含む): 35149660

約数和(自身を除く): 16929835

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 6229, 18687, 31145, 56061, 80977, 93435, 155725, 242931, 280305, 404885, 467175, 728793, 1214655, 1401525, 2024425, 3643965, 6073275, 18219825]

約数ペア:

[(1, 18219825), (3, 6073275), (5, 3643965), (9, 2024425), (13, 1401525), (15, 1214655), (25, 728793), (39, 467175), (45, 404885), (65, 280305), (75, 242931), (117, 155725), (195, 93435), (225, 80977), (325, 56061), (585, 31145), (975, 18687), (2925, 6229)]