211323903

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1\times {\mathrm{523}}^1$

素因数の和:875

約数の個数: 32

約数和(自身を含む): 328384512

約数和(自身を除く): 117060609

約数列:

[1, 3, 7, 21, 71, 213, 271, 497, 523, 813, 1491, 1569, 1897, 3661, 5691, 10983, 19241, 37133, 57723, 111399, 134687, 141733, 259931, 404061, 425199, 779793, 992131, 2976393, 10063043, 30189129, 70441301, 211323903]

約数ペア:

[(1, 211323903), (3, 70441301), (7, 30189129), (21, 10063043), (71, 2976393), (213, 992131), (271, 779793), (497, 425199), (523, 404061), (813, 259931), (1491, 141733), (1569, 134687), (1897, 111399), (3661, 57723), (5691, 37133), (10983, 19241)]