20529738

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{587}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 46781280

約数和(自身を除く): 26251542

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 67, 87, 134, 174, 201, 261, 402, 522, 587, 603, 1174, 1206, 1761, 1943, 3522, 3886, 5283, 5829, 10566, 11658, 17023, 17487, 34046, 34974, 39329, 51069, 78658, 102138, 117987, 153207, 235974, 306414, 353961, 707922, 1140541, 2281082, 3421623, 6843246, 10264869, 20529738]

約数ペア:

[(1, 20529738), (2, 10264869), (3, 6843246), (6, 3421623), (9, 2281082), (18, 1140541), (29, 707922), (58, 353961), (67, 306414), (87, 235974), (134, 153207), (174, 117987), (201, 102138), (261, 78658), (402, 51069), (522, 39329), (587, 34974), (603, 34046), (1174, 17487), (1206, 17023), (1761, 11658), (1943, 10566), (3522, 5829), (3886, 5283)]