21964833

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 37919232

約数和(自身を除く): 15954399

約数列:

[1, 3, 9, 11, 17, 31, 33, 51, 93, 99, 153, 187, 279, 341, 421, 527, 561, 1023, 1263, 1581, 1683, 3069, 3789, 4631, 4743, 5797, 7157, 13051, 13893, 17391, 21471, 39153, 41679, 52173, 64413, 78727, 117459, 143561, 221867, 236181, 430683, 665601, 708543, 1292049, 1996803, 2440537, 7321611, 21964833]

約数ペア:

[(1, 21964833), (3, 7321611), (9, 2440537), (11, 1996803), (17, 1292049), (31, 708543), (33, 665601), (51, 430683), (93, 236181), (99, 221867), (153, 143561), (187, 117459), (279, 78727), (341, 64413), (421, 52173), (527, 41679), (561, 39153), (1023, 21471), (1263, 17391), (1581, 13893), (1683, 13051), (3069, 7157), (3789, 5797), (4631, 4743)]