20481396

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7723}}^1$

素因数の和:7760

約数の個数: 48

約数和(自身を含む): 54500544

約数和(自身を除く): 34019148

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 204, 221, 442, 663, 884, 1326, 2652, 7723, 15446, 23169, 30892, 46338, 92676, 100399, 131291, 200798, 262582, 301197, 393873, 401596, 525164, 602394, 787746, 1204788, 1575492, 1706783, 3413566, 5120349, 6827132, 10240698, 20481396]

約数ペア:

[(1, 20481396), (2, 10240698), (3, 6827132), (4, 5120349), (6, 3413566), (12, 1706783), (13, 1575492), (17, 1204788), (26, 787746), (34, 602394), (39, 525164), (51, 401596), (52, 393873), (68, 301197), (78, 262582), (102, 200798), (156, 131291), (204, 100399), (221, 92676), (442, 46338), (663, 30892), (884, 23169), (1326, 15446), (2652, 7723)]