21997410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{15601}}^1$

素因数の和:15658

約数の個数: 32

約数和(自身を含む): 53920512

約数和(自身を除く): 31923102

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 141, 235, 282, 470, 705, 1410, 15601, 31202, 46803, 78005, 93606, 156010, 234015, 468030, 733247, 1466494, 2199741, 3666235, 4399482, 7332470, 10998705, 21997410]

約数ペア:

[(1, 21997410), (2, 10998705), (3, 7332470), (5, 4399482), (6, 3666235), (10, 2199741), (15, 1466494), (30, 733247), (47, 468030), (94, 234015), (141, 156010), (235, 93606), (282, 78005), (470, 46803), (705, 31202), (1410, 15601)]