21494558

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 35228736

約数和(自身を除く): 13734178

約数列:

[1, 2, 23, 37, 46, 73, 74, 146, 173, 346, 851, 1679, 1702, 2701, 3358, 3979, 5402, 6401, 7958, 12629, 12802, 25258, 62123, 124246, 147223, 290467, 294446, 467273, 580934, 934546, 10747279, 21494558]

約数ペア:

[(1, 21494558), (2, 10747279), (23, 934546), (37, 580934), (46, 467273), (73, 294446), (74, 290467), (146, 147223), (173, 124246), (346, 62123), (851, 25258), (1679, 12802), (1702, 12629), (2701, 7958), (3358, 6401), (3979, 5402)]