387904041

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{23773}}^1$

素因数の和:23830

約数の個数: 36

約数和(自身を含む): 669428292

約数和(自身を除く): 281524251

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 111, 147, 259, 333, 441, 777, 1813, 2331, 5439, 16317, 23773, 71319, 166411, 213957, 499233, 879601, 1164877, 1497699, 2638803, 3494631, 6157207, 7916409, 10483893, 18471621, 43100449, 55414863, 129301347, 387904041]

約数ペア:

[(1, 387904041), (3, 129301347), (7, 55414863), (9, 43100449), (21, 18471621), (37, 10483893), (49, 7916409), (63, 6157207), (111, 3494631), (147, 2638803), (259, 1497699), (333, 1164877), (441, 879601), (777, 499233), (1813, 213957), (2331, 166411), (5439, 71319), (16317, 23773)]