18003951

素因数分解:

$3^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:413

約数の個数: 40

約数和(自身を含む): 31119264

約数和(自身を除く): 13115313

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 113, 189, 281, 339, 567, 791, 843, 1017, 1967, 2373, 2529, 3051, 5901, 7119, 7587, 9153, 17703, 21357, 22761, 31753, 53109, 64071, 95259, 159327, 222271, 285777, 666813, 857331, 2000439, 2571993, 6001317, 18003951]

約数ペア:

[(1, 18003951), (3, 6001317), (7, 2571993), (9, 2000439), (21, 857331), (27, 666813), (63, 285777), (81, 222271), (113, 159327), (189, 95259), (281, 64071), (339, 53109), (567, 31753), (791, 22761), (843, 21357), (1017, 17703), (1967, 9153), (2373, 7587), (2529, 7119), (3051, 5901)]