217397718

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{449}}^1\times {\mathrm{727}}^1$

素因数の和:1221

約数の個数: 48

約数和(自身を含む): 485503200

約数和(自身を除く): 268105482

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 449, 666, 727, 898, 1347, 1454, 2181, 2694, 4041, 4362, 6543, 8082, 13086, 16613, 26899, 33226, 49839, 53798, 80697, 99678, 149517, 161394, 242091, 299034, 326423, 484182, 652846, 979269, 1958538, 2937807, 5875614, 12077651, 24155302, 36232953, 72465906, 108698859, 217397718]

約数ペア:

[(1, 217397718), (2, 108698859), (3, 72465906), (6, 36232953), (9, 24155302), (18, 12077651), (37, 5875614), (74, 2937807), (111, 1958538), (222, 979269), (333, 652846), (449, 484182), (666, 326423), (727, 299034), (898, 242091), (1347, 161394), (1454, 149517), (2181, 99678), (2694, 80697), (4041, 53798), (4362, 49839), (6543, 33226), (8082, 26899), (13086, 16613)]