21126201

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{421}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 28966080

約数和(自身を除く): 7839879

約数列:

[1, 3, 43, 129, 389, 421, 1167, 1263, 16727, 18103, 50181, 54309, 163769, 491307, 7042067, 21126201]

約数ペア:

[(1, 21126201), (3, 7042067), (43, 491307), (129, 163769), (389, 54309), (421, 50181), (1167, 18103), (1263, 16727)]