18979236

素因数分解:

$2^2\times 3^2\times {\mathrm{409}}^1\times {\mathrm{1289}}^1$

素因数の和:1708

約数の個数: 36

約数和(自身を含む): 48129900

約数和(自身を除く): 29150664

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 409, 818, 1227, 1289, 1636, 2454, 2578, 3681, 3867, 4908, 5156, 7362, 7734, 11601, 14724, 15468, 23202, 46404, 527201, 1054402, 1581603, 2108804, 3163206, 4744809, 6326412, 9489618, 18979236]

約数ペア:

[(1, 18979236), (2, 9489618), (3, 6326412), (4, 4744809), (6, 3163206), (9, 2108804), (12, 1581603), (18, 1054402), (36, 527201), (409, 46404), (818, 23202), (1227, 15468), (1289, 14724), (1636, 11601), (2454, 7734), (2578, 7362), (3681, 5156), (3867, 4908)]