21081960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:547

約数の個数: 96

約数和(自身を含む): 69137640

約数和(自身を除く): 48055680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 157, 180, 314, 360, 373, 471, 628, 746, 785, 942, 1119, 1256, 1413, 1492, 1570, 1865, 1884, 2238, 2355, 2826, 2984, 3140, 3357, 3730, 3768, 4476, 4710, 5595, 5652, 6280, 6714, 7065, 7460, 8952, 9420, 11190, 11304, 13428, 14130, 14920, 16785, 18840, 22380, 26856, 28260, 33570, 44760, 56520, 58561, 67140, 117122, 134280, 175683, 234244, 292805, 351366, 468488, 527049, 585610, 702732, 878415, 1054098, 1171220, 1405464, 1756830, 2108196, 2342440, 2635245, 3513660, 4216392, 5270490, 7027320, 10540980, 21081960]

約数ペア:

[(1, 21081960), (2, 10540980), (3, 7027320), (4, 5270490), (5, 4216392), (6, 3513660), (8, 2635245), (9, 2342440), (10, 2108196), (12, 1756830), (15, 1405464), (18, 1171220), (20, 1054098), (24, 878415), (30, 702732), (36, 585610), (40, 527049), (45, 468488), (60, 351366), (72, 292805), (90, 234244), (120, 175683), (157, 134280), (180, 117122), (314, 67140), (360, 58561), (373, 56520), (471, 44760), (628, 33570), (746, 28260), (785, 26856), (942, 22380), (1119, 18840), (1256, 16785), (1413, 14920), (1492, 14130), (1570, 13428), (1865, 11304), (1884, 11190), (2238, 9420), (2355, 8952), (2826, 7460), (2984, 7065), (3140, 6714), (3357, 6280), (3730, 5652), (3768, 5595), (4476, 4710)]