21057786

素因数分解:

$2^1\times 3^3\times {\mathrm{47}}^1\times {\mathrm{8297}}^1$

素因数の和:8355

約数の個数: 32

約数和(自身を含む): 47796480

約数和(自身を除く): 26738694

約数列:

[1, 2, 3, 6, 9, 18, 27, 47, 54, 94, 141, 282, 423, 846, 1269, 2538, 8297, 16594, 24891, 49782, 74673, 149346, 224019, 389959, 448038, 779918, 1169877, 2339754, 3509631, 7019262, 10528893, 21057786]

約数ペア:

[(1, 21057786), (2, 10528893), (3, 7019262), (6, 3509631), (9, 2339754), (18, 1169877), (27, 779918), (47, 448038), (54, 389959), (94, 224019), (141, 149346), (282, 74673), (423, 49782), (846, 24891), (1269, 16594), (2538, 8297)]