21757590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1601}}^1$

素因数の和:1765

約数の個数: 48

約数和(自身を含む): 56979936

約数和(自身を除く): 35222346

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 151, 302, 453, 755, 906, 1359, 1510, 1601, 2265, 2718, 3202, 4530, 4803, 6795, 8005, 9606, 13590, 14409, 16010, 24015, 28818, 48030, 72045, 144090, 241751, 483502, 725253, 1208755, 1450506, 2175759, 2417510, 3626265, 4351518, 7252530, 10878795, 21757590]

約数ペア:

[(1, 21757590), (2, 10878795), (3, 7252530), (5, 4351518), (6, 3626265), (9, 2417510), (10, 2175759), (15, 1450506), (18, 1208755), (30, 725253), (45, 483502), (90, 241751), (151, 144090), (302, 72045), (453, 48030), (755, 28818), (906, 24015), (1359, 16010), (1510, 14409), (1601, 13590), (2265, 9606), (2718, 8005), (3202, 6795), (4530, 4803)]