20924694

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2339}}^1$

素因数の和:2425

約数の個数: 48

約数和(自身を含む): 52565760

約数和(自身を除く): 31641066

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 71, 126, 142, 213, 426, 497, 639, 994, 1278, 1491, 2339, 2982, 4473, 4678, 7017, 8946, 14034, 16373, 21051, 32746, 42102, 49119, 98238, 147357, 166069, 294714, 332138, 498207, 996414, 1162483, 1494621, 2324966, 2989242, 3487449, 6974898, 10462347, 20924694]

約数ペア:

[(1, 20924694), (2, 10462347), (3, 6974898), (6, 3487449), (7, 2989242), (9, 2324966), (14, 1494621), (18, 1162483), (21, 996414), (42, 498207), (63, 332138), (71, 294714), (126, 166069), (142, 147357), (213, 98238), (426, 49119), (497, 42102), (639, 32746), (994, 21051), (1278, 16373), (1491, 14034), (2339, 8946), (2982, 7017), (4473, 4678)]