21308460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2711}}^1$

素因数の和:2854

約数の個数: 48

約数和(自身を含む): 60141312

約数和(自身を除く): 38832852

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, 2711, 3930, 5422, 7860, 8133, 10844, 13555, 16266, 27110, 32532, 40665, 54220, 81330, 162660, 355141, 710282, 1065423, 1420564, 1775705, 2130846, 3551410, 4261692, 5327115, 7102820, 10654230, 21308460]

約数ペア:

[(1, 21308460), (2, 10654230), (3, 7102820), (4, 5327115), (5, 4261692), (6, 3551410), (10, 2130846), (12, 1775705), (15, 1420564), (20, 1065423), (30, 710282), (60, 355141), (131, 162660), (262, 81330), (393, 54220), (524, 40665), (655, 32532), (786, 27110), (1310, 16266), (1572, 13555), (1965, 10844), (2620, 8133), (2711, 7860), (3930, 5422)]