21875274

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:435

約数の個数: 48

約数和(自身を含む): 49420800

約数和(自身を除く): 27545526

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 197, 199, 279, 394, 398, 558, 591, 597, 1182, 1194, 1773, 1791, 3546, 3582, 6107, 6169, 12214, 12338, 18321, 18507, 36642, 37014, 39203, 54963, 55521, 78406, 109926, 111042, 117609, 235218, 352827, 705654, 1215293, 2430586, 3645879, 7291758, 10937637, 21875274]

約数ペア:

[(1, 21875274), (2, 10937637), (3, 7291758), (6, 3645879), (9, 2430586), (18, 1215293), (31, 705654), (62, 352827), (93, 235218), (186, 117609), (197, 111042), (199, 109926), (279, 78406), (394, 55521), (398, 54963), (558, 39203), (591, 37014), (597, 36642), (1182, 18507), (1194, 18321), (1773, 12338), (1791, 12214), (3546, 6169), (3582, 6107)]