21012894

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2111}}^1$

素因数の和:2205

約数の個数: 48

約数和(自身を含む): 52715520

約数和(自身を除く): 31702626

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 79, 126, 158, 237, 474, 553, 711, 1106, 1422, 1659, 2111, 3318, 4222, 4977, 6333, 9954, 12666, 14777, 18999, 29554, 37998, 44331, 88662, 132993, 166769, 265986, 333538, 500307, 1000614, 1167383, 1500921, 2334766, 3001842, 3502149, 7004298, 10506447, 21012894]

約数ペア:

[(1, 21012894), (2, 10506447), (3, 7004298), (6, 3502149), (7, 3001842), (9, 2334766), (14, 1500921), (18, 1167383), (21, 1000614), (42, 500307), (63, 333538), (79, 265986), (126, 166769), (158, 132993), (237, 88662), (474, 44331), (553, 37998), (711, 29554), (1106, 18999), (1422, 14777), (1659, 12666), (2111, 9954), (3318, 6333), (4222, 4977)]