20150721

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 31046400

約数和(自身を除く): 10895679

約数列:

[1, 3, 9, 27, 41, 109, 123, 167, 327, 369, 501, 981, 1107, 1503, 2943, 4469, 4509, 6847, 13407, 18203, 20541, 40221, 54609, 61623, 120663, 163827, 184869, 491481, 746323, 2238969, 6716907, 20150721]

約数ペア:

[(1, 20150721), (3, 6716907), (9, 2238969), (27, 746323), (41, 491481), (109, 184869), (123, 163827), (167, 120663), (327, 61623), (369, 54609), (501, 40221), (981, 20541), (1107, 18203), (1503, 13407), (2943, 6847), (4469, 4509)]