21030188

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 20338132

約数列:

[1, 2, 4, 19, 23, 38, 46, 53, 76, 92, 106, 212, 227, 437, 454, 874, 908, 1007, 1219, 1748, 2014, 2438, 4028, 4313, 4876, 5221, 8626, 10442, 12031, 17252, 20884, 23161, 24062, 46322, 48124, 92644, 99199, 198398, 228589, 276713, 396796, 457178, 553426, 914356, 1106852, 5257547, 10515094, 21030188]

約数ペア:

[(1, 21030188), (2, 10515094), (4, 5257547), (19, 1106852), (23, 914356), (38, 553426), (46, 457178), (53, 396796), (76, 276713), (92, 228589), (106, 198398), (212, 99199), (227, 92644), (437, 48124), (454, 46322), (874, 24062), (908, 23161), (1007, 20884), (1219, 17252), (1748, 12031), (2014, 10442), (2438, 8626), (4028, 5221), (4313, 4876)]