18879345

素因数分解:

$3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1283}}^1$

素因数の和:1406

約数の個数: 32

約数和(自身を含む): 33897600

約数和(自身を除く): 15018255

約数列:

[1, 3, 5, 9, 15, 27, 45, 109, 135, 327, 545, 981, 1283, 1635, 2943, 3849, 4905, 6415, 11547, 14715, 19245, 34641, 57735, 139847, 173205, 419541, 699235, 1258623, 2097705, 3775869, 6293115, 18879345]

約数ペア:

[(1, 18879345), (3, 6293115), (5, 3775869), (9, 2097705), (15, 1258623), (27, 699235), (45, 419541), (109, 173205), (135, 139847), (327, 57735), (545, 34641), (981, 19245), (1283, 14715), (1635, 11547), (2943, 6415), (3849, 4905)]