21861210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5479}}^1$

素因数の和:5515

約数の個数: 64

約数和(自身を含む): 63129600

約数和(自身を除く): 41268390

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, 5479, 10958, 16437, 27395, 32874, 38353, 54790, 76706, 82185, 104101, 115059, 164370, 191765, 208202, 230118, 312303, 383530, 520505, 575295, 624606, 728707, 1041010, 1150590, 1457414, 1561515, 2186121, 3123030, 3643535, 4372242, 7287070, 10930605, 21861210]

約数ペア:

[(1, 21861210), (2, 10930605), (3, 7287070), (5, 4372242), (6, 3643535), (7, 3123030), (10, 2186121), (14, 1561515), (15, 1457414), (19, 1150590), (21, 1041010), (30, 728707), (35, 624606), (38, 575295), (42, 520505), (57, 383530), (70, 312303), (95, 230118), (105, 208202), (114, 191765), (133, 164370), (190, 115059), (210, 104101), (266, 82185), (285, 76706), (399, 54790), (570, 38353), (665, 32874), (798, 27395), (1330, 16437), (1995, 10958), (3990, 5479)]