18415215

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1499}}^1$

素因数の和:1533

約数の個数: 64

約数和(自身を含む): 40320000

約数和(自身を除く): 21904785

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 91, 105, 117, 135, 189, 195, 273, 315, 351, 455, 585, 819, 945, 1365, 1499, 1755, 2457, 4095, 4497, 7495, 10493, 12285, 13491, 19487, 22485, 31479, 40473, 52465, 58461, 67455, 94437, 97435, 136409, 157395, 175383, 202365, 283311, 292305, 409227, 472185, 526149, 682045, 876915, 1227681, 1416555, 2046135, 2630745, 3683043, 6138405, 18415215]

約数ペア:

[(1, 18415215), (3, 6138405), (5, 3683043), (7, 2630745), (9, 2046135), (13, 1416555), (15, 1227681), (21, 876915), (27, 682045), (35, 526149), (39, 472185), (45, 409227), (63, 292305), (65, 283311), (91, 202365), (105, 175383), (117, 157395), (135, 136409), (189, 97435), (195, 94437), (273, 67455), (315, 58461), (351, 52465), (455, 40473), (585, 31479), (819, 22485), (945, 19487), (1365, 13491), (1499, 12285), (1755, 10493), (2457, 7495), (4095, 4497)]