210055209

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{109919}}^1$

素因数の和:109949

約数の個数: 24

約数和(自身を含む): 350864640

約数和(自身を除く): 140809431

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 109919, 329757, 769433, 1428947, 2308299, 4286841, 5386031, 10002629, 16158093, 30007887, 70018403, 210055209]

約数ペア:

[(1, 210055209), (3, 70018403), (7, 30007887), (13, 16158093), (21, 10002629), (39, 5386031), (49, 4286841), (91, 2308299), (147, 1428947), (273, 769433), (637, 329757), (1911, 109919)]