31528269

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 46806552

約数和(自身を除く): 15278283

約数列:

[1, 3, 9, 53, 157, 159, 421, 471, 477, 1263, 1413, 3789, 8321, 22313, 24963, 66097, 66939, 74889, 198291, 200817, 594873, 3503141, 10509423, 31528269]

約数ペア:

[(1, 31528269), (3, 10509423), (9, 3503141), (53, 594873), (157, 200817), (159, 198291), (421, 74889), (471, 66939), (477, 66097), (1263, 24963), (1413, 22313), (3789, 8321)]