31228821

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:703

約数の個数: 40

約数和(自身を含む): 51389184

約数和(自身を除く): 20160363

約数列:

[1, 3, 9, 13, 27, 39, 47, 81, 117, 141, 351, 423, 611, 631, 1053, 1269, 1833, 1893, 3807, 5499, 5679, 8203, 16497, 17037, 24609, 29657, 49491, 51111, 73827, 88971, 221481, 266913, 385541, 664443, 800739, 1156623, 2402217, 3469869, 10409607, 31228821]

約数ペア:

[(1, 31228821), (3, 10409607), (9, 3469869), (13, 2402217), (27, 1156623), (39, 800739), (47, 664443), (81, 385541), (117, 266913), (141, 221481), (351, 88971), (423, 73827), (611, 51111), (631, 49491), (1053, 29657), (1269, 24609), (1833, 17037), (1893, 16497), (3807, 8203), (5499, 5679)]