2021201912

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{12301}}^1$

素因数の和:12396

約数の個数: 64

約数和(自身を含む): 4251571200

約数和(自身を除く): 2230369288

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 47, 76, 92, 94, 152, 184, 188, 376, 437, 874, 893, 1081, 1748, 1786, 2162, 3496, 3572, 4324, 7144, 8648, 12301, 20539, 24602, 41078, 49204, 82156, 98408, 164312, 233719, 282923, 467438, 565846, 578147, 934876, 1131692, 1156294, 1869752, 2263384, 2312588, 4625176, 5375537, 10751074, 10984793, 13297381, 21502148, 21969586, 26594762, 43004296, 43939172, 53189524, 87878344, 106379048, 252650239, 505300478, 1010600956, 2021201912]

約数ペア:

[(1, 2021201912), (2, 1010600956), (4, 505300478), (8, 252650239), (19, 106379048), (23, 87878344), (38, 53189524), (46, 43939172), (47, 43004296), (76, 26594762), (92, 21969586), (94, 21502148), (152, 13297381), (184, 10984793), (188, 10751074), (376, 5375537), (437, 4625176), (874, 2312588), (893, 2263384), (1081, 1869752), (1748, 1156294), (1786, 1131692), (2162, 934876), (3496, 578147), (3572, 565846), (4324, 467438), (7144, 282923), (8648, 233719), (12301, 164312), (20539, 98408), (24602, 82156), (41078, 49204)]