21184590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{359}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 58475520

約数和(自身を除く): 37290930

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 281, 359, 562, 718, 843, 1077, 1405, 1686, 1795, 1967, 2154, 2513, 2810, 3590, 3934, 4215, 5026, 5385, 5901, 7539, 8430, 9835, 10770, 11802, 12565, 15078, 19670, 25130, 29505, 37695, 59010, 75390, 100879, 201758, 302637, 504395, 605274, 706153, 1008790, 1412306, 1513185, 2118459, 3026370, 3530765, 4236918, 7061530, 10592295, 21184590]

約数ペア:

[(1, 21184590), (2, 10592295), (3, 7061530), (5, 4236918), (6, 3530765), (7, 3026370), (10, 2118459), (14, 1513185), (15, 1412306), (21, 1008790), (30, 706153), (35, 605274), (42, 504395), (70, 302637), (105, 201758), (210, 100879), (281, 75390), (359, 59010), (562, 37695), (718, 29505), (843, 25130), (1077, 19670), (1405, 15078), (1686, 12565), (1795, 11802), (1967, 10770), (2154, 9835), (2513, 8430), (2810, 7539), (3590, 5901), (3934, 5385), (4215, 5026)]