21648012

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 52157952

約数和(自身を除く): 30509940

約数列:

[1, 2, 3, 4, 6, 12, 47, 94, 131, 141, 188, 262, 282, 293, 393, 524, 564, 586, 786, 879, 1172, 1572, 1758, 3516, 6157, 12314, 13771, 18471, 24628, 27542, 36942, 38383, 41313, 55084, 73884, 76766, 82626, 115149, 153532, 165252, 230298, 460596, 1804001, 3608002, 5412003, 7216004, 10824006, 21648012]

約数ペア:

[(1, 21648012), (2, 10824006), (3, 7216004), (4, 5412003), (6, 3608002), (12, 1804001), (47, 460596), (94, 230298), (131, 165252), (141, 153532), (188, 115149), (262, 82626), (282, 76766), (293, 73884), (393, 55084), (524, 41313), (564, 38383), (586, 36942), (786, 27542), (879, 24628), (1172, 18471), (1572, 13771), (1758, 12314), (3516, 6157)]