15861636

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{20981}}^1$

素因数の和:21001

約数の個数: 48

約数和(自身を含む): 46999680

約数和(自身を除く): 31138044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 20981, 41962, 62943, 83924, 125886, 146867, 188829, 251772, 293734, 377658, 440601, 566487, 587468, 755316, 881202, 1132974, 1321803, 1762404, 2265948, 2643606, 3965409, 5287212, 7930818, 15861636]

約数ペア:

[(1, 15861636), (2, 7930818), (3, 5287212), (4, 3965409), (6, 2643606), (7, 2265948), (9, 1762404), (12, 1321803), (14, 1132974), (18, 881202), (21, 755316), (27, 587468), (28, 566487), (36, 440601), (42, 377658), (54, 293734), (63, 251772), (84, 188829), (108, 146867), (126, 125886), (189, 83924), (252, 62943), (378, 41962), (756, 20981)]