211754397

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{887}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 310984704

約数和(自身を除く): 99230307

約数列:

[1, 3, 17, 31, 51, 93, 151, 453, 527, 887, 1581, 2567, 2661, 4681, 7701, 14043, 15079, 27497, 45237, 79577, 82491, 133937, 238731, 401811, 467449, 1402347, 2276929, 4152047, 6830787, 12456141, 70584799, 211754397]

約数ペア:

[(1, 211754397), (3, 70584799), (17, 12456141), (31, 6830787), (51, 4152047), (93, 2276929), (151, 1402347), (453, 467449), (527, 401811), (887, 238731), (1581, 133937), (2567, 82491), (2661, 79577), (4681, 45237), (7701, 27497), (14043, 15079)]