21083280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{821}}^1$

素因数の和:944

約数の個数: 80

約数和(自身を含む): 66049344

約数和(自身を除く): 44966064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 107, 120, 214, 240, 321, 428, 535, 642, 821, 856, 1070, 1284, 1605, 1642, 1712, 2140, 2463, 2568, 3210, 3284, 4105, 4280, 4926, 5136, 6420, 6568, 8210, 8560, 9852, 12315, 12840, 13136, 16420, 19704, 24630, 25680, 32840, 39408, 49260, 65680, 87847, 98520, 175694, 197040, 263541, 351388, 439235, 527082, 702776, 878470, 1054164, 1317705, 1405552, 1756940, 2108328, 2635410, 3513880, 4216656, 5270820, 7027760, 10541640, 21083280]

約数ペア:

[(1, 21083280), (2, 10541640), (3, 7027760), (4, 5270820), (5, 4216656), (6, 3513880), (8, 2635410), (10, 2108328), (12, 1756940), (15, 1405552), (16, 1317705), (20, 1054164), (24, 878470), (30, 702776), (40, 527082), (48, 439235), (60, 351388), (80, 263541), (107, 197040), (120, 175694), (214, 98520), (240, 87847), (321, 65680), (428, 49260), (535, 39408), (642, 32840), (821, 25680), (856, 24630), (1070, 19704), (1284, 16420), (1605, 13136), (1642, 12840), (1712, 12315), (2140, 9852), (2463, 8560), (2568, 8210), (3210, 6568), (3284, 6420), (4105, 5136), (4280, 4926)]