21630154

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6991}}^1$

素因数の和:7030

約数の個数: 32

約数和(自身を含む): 42287616

約数和(自身を除く): 20657462

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 182, 221, 238, 442, 1547, 3094, 6991, 13982, 48937, 90883, 97874, 118847, 181766, 237694, 636181, 831929, 1272362, 1545011, 1663858, 3090022, 10815077, 21630154]

約数ペア:

[(1, 21630154), (2, 10815077), (7, 3090022), (13, 1663858), (14, 1545011), (17, 1272362), (26, 831929), (34, 636181), (91, 237694), (119, 181766), (182, 118847), (221, 97874), (238, 90883), (442, 48937), (1547, 13982), (3094, 6991)]