20776245

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1229}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 40383360

約数和(自身を除く): 19607115

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 69, 105, 115, 147, 161, 245, 345, 483, 735, 805, 1127, 1229, 2415, 3381, 3687, 5635, 6145, 8603, 16905, 18435, 25809, 28267, 43015, 60221, 84801, 129045, 141335, 180663, 197869, 301105, 424005, 593607, 903315, 989345, 1385083, 2968035, 4155249, 6925415, 20776245]

約数ペア:

[(1, 20776245), (3, 6925415), (5, 4155249), (7, 2968035), (15, 1385083), (21, 989345), (23, 903315), (35, 593607), (49, 424005), (69, 301105), (105, 197869), (115, 180663), (147, 141335), (161, 129045), (245, 84801), (345, 60221), (483, 43015), (735, 28267), (805, 25809), (1127, 18435), (1229, 16905), (2415, 8603), (3381, 6145), (3687, 5635)]