21780912

素因数分解:

$2^4\times 3^1\times {\mathrm{59}}^1\times {\mathrm{7691}}^1$

素因数の和:7761

約数の個数: 40

約数和(自身を含む): 57228480

約数和(自身を除く): 35447568

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 59, 118, 177, 236, 354, 472, 708, 944, 1416, 2832, 7691, 15382, 23073, 30764, 46146, 61528, 92292, 123056, 184584, 369168, 453769, 907538, 1361307, 1815076, 2722614, 3630152, 5445228, 7260304, 10890456, 21780912]

約数ペア:

[(1, 21780912), (2, 10890456), (3, 7260304), (4, 5445228), (6, 3630152), (8, 2722614), (12, 1815076), (16, 1361307), (24, 907538), (48, 453769), (59, 369168), (118, 184584), (177, 123056), (236, 92292), (354, 61528), (472, 46146), (708, 30764), (944, 23073), (1416, 15382), (2832, 7691)]