21943005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:698

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 22846755

約数列:

[1, 3, 5, 7, 15, 17, 19, 21, 35, 51, 57, 85, 95, 105, 119, 133, 255, 285, 323, 357, 399, 595, 647, 665, 969, 1615, 1785, 1941, 1995, 2261, 3235, 4529, 4845, 6783, 9705, 10999, 11305, 12293, 13587, 22645, 32997, 33915, 36879, 54995, 61465, 67935, 76993, 86051, 164985, 184395, 208981, 230979, 258153, 384965, 430255, 626943, 1044905, 1154895, 1290765, 1462867, 3134715, 4388601, 7314335, 21943005]

約数ペア:

[(1, 21943005), (3, 7314335), (5, 4388601), (7, 3134715), (15, 1462867), (17, 1290765), (19, 1154895), (21, 1044905), (35, 626943), (51, 430255), (57, 384965), (85, 258153), (95, 230979), (105, 208981), (119, 184395), (133, 164985), (255, 86051), (285, 76993), (323, 67935), (357, 61465), (399, 54995), (595, 36879), (647, 33915), (665, 32997), (969, 22645), (1615, 13587), (1785, 12293), (1941, 11305), (1995, 10999), (2261, 9705), (3235, 6783), (4529, 4845)]