16997820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{40471}}^1$

素因数の和:40490

約数の個数: 48

約数和(自身を含む): 54394368

約数和(自身を除く): 37396548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 40471, 80942, 121413, 161884, 202355, 242826, 283297, 404710, 485652, 566594, 607065, 809420, 849891, 1133188, 1214130, 1416485, 1699782, 2428260, 2832970, 3399564, 4249455, 5665940, 8498910, 16997820]

約数ペア:

[(1, 16997820), (2, 8498910), (3, 5665940), (4, 4249455), (5, 3399564), (6, 2832970), (7, 2428260), (10, 1699782), (12, 1416485), (14, 1214130), (15, 1133188), (20, 849891), (21, 809420), (28, 607065), (30, 566594), (35, 485652), (42, 404710), (60, 283297), (70, 242826), (84, 202355), (105, 161884), (140, 121413), (210, 80942), (420, 40471)]