21239700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{853}}^1$

素因数の和:953

約数の個数: 72

約数和(自身を含む): 62266848

約数和(自身を除く): 41027148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 83, 100, 150, 166, 249, 300, 332, 415, 498, 830, 853, 996, 1245, 1660, 1706, 2075, 2490, 2559, 3412, 4150, 4265, 4980, 5118, 6225, 8300, 8530, 10236, 12450, 12795, 17060, 21325, 24900, 25590, 42650, 51180, 63975, 70799, 85300, 127950, 141598, 212397, 255900, 283196, 353995, 424794, 707990, 849588, 1061985, 1415980, 1769975, 2123970, 3539950, 4247940, 5309925, 7079900, 10619850, 21239700]

約数ペア:

[(1, 21239700), (2, 10619850), (3, 7079900), (4, 5309925), (5, 4247940), (6, 3539950), (10, 2123970), (12, 1769975), (15, 1415980), (20, 1061985), (25, 849588), (30, 707990), (50, 424794), (60, 353995), (75, 283196), (83, 255900), (100, 212397), (150, 141598), (166, 127950), (249, 85300), (300, 70799), (332, 63975), (415, 51180), (498, 42650), (830, 25590), (853, 24900), (996, 21325), (1245, 17060), (1660, 12795), (1706, 12450), (2075, 10236), (2490, 8530), (2559, 8300), (3412, 6225), (4150, 5118), (4265, 4980)]