21977160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{491}}^1$

素因数の和:878

約数の個数: 64

約数和(自身を含む): 66242880

約数和(自身を除く): 44265720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 373, 491, 746, 982, 1119, 1473, 1492, 1865, 1964, 2238, 2455, 2946, 2984, 3730, 3928, 4476, 4910, 5595, 5892, 7365, 7460, 8952, 9820, 11190, 11784, 14730, 14920, 19640, 22380, 29460, 44760, 58920, 183143, 366286, 549429, 732572, 915715, 1098858, 1465144, 1831430, 2197716, 2747145, 3662860, 4395432, 5494290, 7325720, 10988580, 21977160]

約数ペア:

[(1, 21977160), (2, 10988580), (3, 7325720), (4, 5494290), (5, 4395432), (6, 3662860), (8, 2747145), (10, 2197716), (12, 1831430), (15, 1465144), (20, 1098858), (24, 915715), (30, 732572), (40, 549429), (60, 366286), (120, 183143), (373, 58920), (491, 44760), (746, 29460), (982, 22380), (1119, 19640), (1473, 14920), (1492, 14730), (1865, 11784), (1964, 11190), (2238, 9820), (2455, 8952), (2946, 7460), (2984, 7365), (3730, 5892), (3928, 5595), (4476, 4910)]