217381815

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{14683}}^1$

素因数の和:14748

約数の個数: 48

約数和(自身を含む): 439815168

約数和(自身を除く): 222433353

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 47, 63, 105, 141, 235, 315, 329, 423, 705, 987, 1645, 2115, 2961, 4935, 14683, 14805, 44049, 73415, 102781, 132147, 220245, 308343, 513905, 660735, 690101, 925029, 1541715, 2070303, 3450505, 4625145, 4830707, 6210909, 10351515, 14492121, 24153535, 31054545, 43476363, 72460605, 217381815]

約数ペア:

[(1, 217381815), (3, 72460605), (5, 43476363), (7, 31054545), (9, 24153535), (15, 14492121), (21, 10351515), (35, 6210909), (45, 4830707), (47, 4625145), (63, 3450505), (105, 2070303), (141, 1541715), (235, 925029), (315, 690101), (329, 660735), (423, 513905), (705, 308343), (987, 220245), (1645, 132147), (2115, 102781), (2961, 73415), (4935, 44049), (14683, 14805)]