21999224

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1$

素因数の和:600

約数の個数: 64

約数和(自身を含む): 49170240

約数和(自身を除く): 27171016

約数列:

[1, 2, 4, 8, 13, 17, 23, 26, 34, 46, 52, 68, 92, 104, 136, 184, 221, 299, 391, 442, 541, 598, 782, 884, 1082, 1196, 1564, 1768, 2164, 2392, 3128, 4328, 5083, 7033, 9197, 10166, 12443, 14066, 18394, 20332, 24886, 28132, 36788, 40664, 49772, 56264, 73576, 99544, 119561, 161759, 211531, 239122, 323518, 423062, 478244, 647036, 846124, 956488, 1294072, 1692248, 2749903, 5499806, 10999612, 21999224]

約数ペア:

[(1, 21999224), (2, 10999612), (4, 5499806), (8, 2749903), (13, 1692248), (17, 1294072), (23, 956488), (26, 846124), (34, 647036), (46, 478244), (52, 423062), (68, 323518), (92, 239122), (104, 211531), (136, 161759), (184, 119561), (221, 99544), (299, 73576), (391, 56264), (442, 49772), (541, 40664), (598, 36788), (782, 28132), (884, 24886), (1082, 20332), (1196, 18394), (1564, 14066), (1768, 12443), (2164, 10166), (2392, 9197), (3128, 7033), (4328, 5083)]