21677684

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 46400256

約数和(自身を除く): 24722572

約数列:

[1, 2, 4, 7, 14, 23, 28, 41, 46, 82, 92, 161, 164, 287, 322, 574, 644, 821, 943, 1148, 1642, 1886, 3284, 3772, 5747, 6601, 11494, 13202, 18883, 22988, 26404, 33661, 37766, 67322, 75532, 132181, 134644, 235627, 264362, 471254, 528724, 774203, 942508, 1548406, 3096812, 5419421, 10838842, 21677684]

約数ペア:

[(1, 21677684), (2, 10838842), (4, 5419421), (7, 3096812), (14, 1548406), (23, 942508), (28, 774203), (41, 528724), (46, 471254), (82, 264362), (92, 235627), (161, 134644), (164, 132181), (287, 75532), (322, 67322), (574, 37766), (644, 33661), (821, 26404), (943, 22988), (1148, 18883), (1642, 13202), (1886, 11494), (3284, 6601), (3772, 5747)]