16921590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4241}}^1$

素因数の和:4277

約数の個数: 64

約数和(自身を含む): 48867840

約数和(自身を除く): 31946250

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 4241, 8482, 12723, 21205, 25446, 29687, 42410, 59374, 63615, 80579, 89061, 127230, 148435, 161158, 178122, 241737, 296870, 402895, 445305, 483474, 564053, 805790, 890610, 1128106, 1208685, 1692159, 2417370, 2820265, 3384318, 5640530, 8460795, 16921590]

約数ペア:

[(1, 16921590), (2, 8460795), (3, 5640530), (5, 3384318), (6, 2820265), (7, 2417370), (10, 1692159), (14, 1208685), (15, 1128106), (19, 890610), (21, 805790), (30, 564053), (35, 483474), (38, 445305), (42, 402895), (57, 296870), (70, 241737), (95, 178122), (105, 161158), (114, 148435), (133, 127230), (190, 89061), (210, 80579), (266, 63615), (285, 59374), (399, 42410), (570, 29687), (665, 25446), (798, 21205), (1330, 12723), (1995, 8482), (3990, 4241)]