18515556

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 49480704

約数和(自身を除く): 30965148

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 47, 62, 93, 94, 124, 141, 186, 188, 279, 282, 353, 372, 423, 558, 564, 706, 846, 1059, 1116, 1412, 1457, 1692, 2118, 2914, 3177, 4236, 4371, 5828, 6354, 8742, 10943, 12708, 13113, 16591, 17484, 21886, 26226, 32829, 33182, 43772, 49773, 52452, 65658, 66364, 98487, 99546, 131316, 149319, 196974, 199092, 298638, 393948, 514321, 597276, 1028642, 1542963, 2057284, 3085926, 4628889, 6171852, 9257778, 18515556]

約数ペア:

[(1, 18515556), (2, 9257778), (3, 6171852), (4, 4628889), (6, 3085926), (9, 2057284), (12, 1542963), (18, 1028642), (31, 597276), (36, 514321), (47, 393948), (62, 298638), (93, 199092), (94, 196974), (124, 149319), (141, 131316), (186, 99546), (188, 98487), (279, 66364), (282, 65658), (353, 52452), (372, 49773), (423, 43772), (558, 33182), (564, 32829), (706, 26226), (846, 21886), (1059, 17484), (1116, 16591), (1412, 13113), (1457, 12708), (1692, 10943), (2118, 8742), (2914, 6354), (3177, 5828), (4236, 4371)]