20657304

素因数分解:

$2^3\times 3^2\times {\mathrm{113}}^1\times {\mathrm{2539}}^1$

素因数の和:2664

約数の個数: 48

約数和(自身を含む): 56464200

約数和(自身を除く): 35806896

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 113, 226, 339, 452, 678, 904, 1017, 1356, 2034, 2539, 2712, 4068, 5078, 7617, 8136, 10156, 15234, 20312, 22851, 30468, 45702, 60936, 91404, 182808, 286907, 573814, 860721, 1147628, 1721442, 2295256, 2582163, 3442884, 5164326, 6885768, 10328652, 20657304]

約数ペア:

[(1, 20657304), (2, 10328652), (3, 6885768), (4, 5164326), (6, 3442884), (8, 2582163), (9, 2295256), (12, 1721442), (18, 1147628), (24, 860721), (36, 573814), (72, 286907), (113, 182808), (226, 91404), (339, 60936), (452, 45702), (678, 30468), (904, 22851), (1017, 20312), (1356, 15234), (2034, 10156), (2539, 8136), (2712, 7617), (4068, 5078)]