18220545

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{6427}}^1$

素因数の和:6451

約数の個数: 40

約数和(自身を含む): 37333824

約数和(自身を除く): 19113279

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 6427, 19281, 32135, 44989, 57843, 96405, 134967, 173529, 224945, 289215, 404901, 520587, 674835, 867645, 1214703, 2024505, 2602935, 3644109, 6073515, 18220545]

約数ペア:

[(1, 18220545), (3, 6073515), (5, 3644109), (7, 2602935), (9, 2024505), (15, 1214703), (21, 867645), (27, 674835), (35, 520587), (45, 404901), (63, 289215), (81, 224945), (105, 173529), (135, 134967), (189, 96405), (315, 57843), (405, 44989), (567, 32135), (945, 19281), (2835, 6427)]