21442275

素因数分解:

$3^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{607}}^1$

素因数の和:780

約数の個数: 36

約数和(自身を含む): 38713792

約数和(自身を除く): 17271517

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 157, 225, 471, 607, 785, 1413, 1821, 2355, 3035, 3925, 5463, 7065, 9105, 11775, 15175, 27315, 35325, 45525, 95299, 136575, 285897, 476495, 857691, 1429485, 2382475, 4288455, 7147425, 21442275]

約数ペア:

[(1, 21442275), (3, 7147425), (5, 4288455), (9, 2382475), (15, 1429485), (25, 857691), (45, 476495), (75, 285897), (157, 136575), (225, 95299), (471, 45525), (607, 35325), (785, 27315), (1413, 15175), (1821, 11775), (2355, 9105), (3035, 7065), (3925, 5463)]