20503404

素因数分解:

$2^2\times 3^2\times {\mathrm{101}}^1\times {\mathrm{5639}}^1$

素因数の和:5750

約数の個数: 36

約数和(自身を含む): 52350480

約数和(自身を除く): 31847076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 101, 202, 303, 404, 606, 909, 1212, 1818, 3636, 5639, 11278, 16917, 22556, 33834, 50751, 67668, 101502, 203004, 569539, 1139078, 1708617, 2278156, 3417234, 5125851, 6834468, 10251702, 20503404]

約数ペア:

[(1, 20503404), (2, 10251702), (3, 6834468), (4, 5125851), (6, 3417234), (9, 2278156), (12, 1708617), (18, 1139078), (36, 569539), (101, 203004), (202, 101502), (303, 67668), (404, 50751), (606, 33834), (909, 22556), (1212, 16917), (1818, 11278), (3636, 5639)]