121278015

素因数分解:

$3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{21221}}^1$

素因数の和:21359

約数の個数: 24

約数和(自身を含む): 211880448

約数和(自身を除く): 90602433

約数列:

[1, 3, 5, 9, 15, 45, 127, 381, 635, 1143, 1905, 5715, 21221, 63663, 106105, 190989, 318315, 954945, 2695067, 8085201, 13475335, 24255603, 40426005, 121278015]

約数ペア:

[(1, 121278015), (3, 40426005), (5, 24255603), (9, 13475335), (15, 8085201), (45, 2695067), (127, 954945), (381, 318315), (635, 190989), (1143, 106105), (1905, 63663), (5715, 21221)]