21727515

素因数分解:

$3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 35703360

約数和(自身を除く): 13975845

約数列:

[1, 3, 5, 15, 97, 109, 137, 291, 327, 411, 485, 545, 685, 1455, 1635, 2055, 10573, 13289, 14933, 31719, 39867, 44799, 52865, 66445, 74665, 158595, 199335, 223995, 1448501, 4345503, 7242505, 21727515]

約数ペア:

[(1, 21727515), (3, 7242505), (5, 4345503), (15, 1448501), (97, 223995), (109, 199335), (137, 158595), (291, 74665), (327, 66445), (411, 52865), (485, 44799), (545, 39867), (685, 31719), (1455, 14933), (1635, 13289), (2055, 10573)]