21064260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50153}}^1$

素因数の和:50172

約数の個数: 48

約数和(自身を含む): 67406976

約数和(自身を除く): 46342716

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, 50153, 100306, 150459, 200612, 250765, 300918, 351071, 501530, 601836, 702142, 752295, 1003060, 1053213, 1404284, 1504590, 1755355, 2106426, 3009180, 3510710, 4212852, 5266065, 7021420, 10532130, 21064260]

約数ペア:

[(1, 21064260), (2, 10532130), (3, 7021420), (4, 5266065), (5, 4212852), (6, 3510710), (7, 3009180), (10, 2106426), (12, 1755355), (14, 1504590), (15, 1404284), (20, 1053213), (21, 1003060), (28, 752295), (30, 702142), (35, 601836), (42, 501530), (60, 351071), (70, 300918), (84, 250765), (105, 200612), (140, 150459), (210, 100306), (420, 50153)]