20992335

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^4$

素因数の和:74

約数の個数: 60

約数和(自身を含む): 42327288

約数和(自身を除く): 21334953

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 169, 195, 245, 273, 455, 507, 637, 735, 845, 1183, 1365, 1911, 2197, 2535, 3185, 3549, 5915, 6591, 8281, 9555, 10985, 15379, 17745, 24843, 28561, 32955, 41405, 46137, 76895, 85683, 107653, 124215, 142805, 199927, 230685, 322959, 428415, 538265, 599781, 999635, 1399489, 1614795, 2998905, 4198467, 6997445, 20992335]

約数ペア:

[(1, 20992335), (3, 6997445), (5, 4198467), (7, 2998905), (13, 1614795), (15, 1399489), (21, 999635), (35, 599781), (39, 538265), (49, 428415), (65, 322959), (91, 230685), (105, 199927), (147, 142805), (169, 124215), (195, 107653), (245, 85683), (273, 76895), (455, 46137), (507, 41405), (637, 32955), (735, 28561), (845, 24843), (1183, 17745), (1365, 15379), (1911, 10985), (2197, 9555), (2535, 8281), (3185, 6591), (3549, 5915)]