21995022

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{947}}^1$

素因数の和:1045

約数の個数: 48

約数和(自身を含む): 51874560

約数和(自身を除く): 29879538

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 79, 98, 147, 158, 237, 294, 474, 553, 947, 1106, 1659, 1894, 2841, 3318, 3871, 5682, 6629, 7742, 11613, 13258, 19887, 23226, 39774, 46403, 74813, 92806, 139209, 149626, 224439, 278418, 448878, 523691, 1047382, 1571073, 3142146, 3665837, 7331674, 10997511, 21995022]

約数ペア:

[(1, 21995022), (2, 10997511), (3, 7331674), (6, 3665837), (7, 3142146), (14, 1571073), (21, 1047382), (42, 523691), (49, 448878), (79, 278418), (98, 224439), (147, 149626), (158, 139209), (237, 92806), (294, 74813), (474, 46403), (553, 39774), (947, 23226), (1106, 19887), (1659, 13258), (1894, 11613), (2841, 7742), (3318, 6629), (3871, 5682)]