21277020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2707}}^1$

素因数の和:2850

約数の個数: 48

約数和(自身を含む): 60052608

約数和(自身を除く): 38775588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 2707, 3930, 5414, 7860, 8121, 10828, 13535, 16242, 27070, 32484, 40605, 54140, 81210, 162420, 354617, 709234, 1063851, 1418468, 1773085, 2127702, 3546170, 4255404, 5319255, 7092340, 10638510, 21277020]

約数ペア:

[(1, 21277020), (2, 10638510), (3, 7092340), (4, 5319255), (5, 4255404), (6, 3546170), (10, 2127702), (12, 1773085), (15, 1418468), (20, 1063851), (30, 709234), (60, 354617), (131, 162420), (262, 81210), (393, 54140), (524, 40605), (655, 32484), (786, 27070), (1310, 16242), (1572, 13535), (1965, 10828), (2620, 8121), (2707, 7860), (3930, 5414)]