21653970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4271}}^1$

素因数の和:4307

約数の個数: 48

約数和(自身を含む): 56287872

約数和(自身を除く): 34633902

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 169, 195, 338, 390, 507, 845, 1014, 1690, 2535, 4271, 5070, 8542, 12813, 21355, 25626, 42710, 55523, 64065, 111046, 128130, 166569, 277615, 333138, 555230, 721799, 832845, 1443598, 1665690, 2165397, 3608995, 4330794, 7217990, 10826985, 21653970]

約数ペア:

[(1, 21653970), (2, 10826985), (3, 7217990), (5, 4330794), (6, 3608995), (10, 2165397), (13, 1665690), (15, 1443598), (26, 832845), (30, 721799), (39, 555230), (65, 333138), (78, 277615), (130, 166569), (169, 128130), (195, 111046), (338, 64065), (390, 55523), (507, 42710), (845, 25626), (1014, 21355), (1690, 12813), (2535, 8542), (4271, 5070)]