20579895

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{827}}^1$

素因数の和:924

約数の個数: 48

約数和(自身を含む): 41333760

約数和(自身を除く): 20753865

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 79, 105, 237, 315, 395, 553, 711, 827, 1185, 1659, 2481, 2765, 3555, 4135, 4977, 5789, 7443, 8295, 12405, 17367, 24885, 28945, 37215, 52101, 65333, 86835, 195999, 260505, 326665, 457331, 587997, 979995, 1371993, 2286655, 2939985, 4115979, 6859965, 20579895]

約数ペア:

[(1, 20579895), (3, 6859965), (5, 4115979), (7, 2939985), (9, 2286655), (15, 1371993), (21, 979995), (35, 587997), (45, 457331), (63, 326665), (79, 260505), (105, 195999), (237, 86835), (315, 65333), (395, 52101), (553, 37215), (711, 28945), (827, 24885), (1185, 17367), (1659, 12405), (2481, 8295), (2765, 7443), (3555, 5789), (4135, 4977)]