21503608

素因数分解:

$2^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2543}}^1$

素因数の和:2707

約数の個数: 32

約数和(自身を含む): 46402560

約数和(自身を除く): 24898952

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 151, 302, 604, 1057, 1208, 2114, 2543, 4228, 5086, 8456, 10172, 17801, 20344, 35602, 71204, 142408, 383993, 767986, 1535972, 2687951, 3071944, 5375902, 10751804, 21503608]

約数ペア:

[(1, 21503608), (2, 10751804), (4, 5375902), (7, 3071944), (8, 2687951), (14, 1535972), (28, 767986), (56, 383993), (151, 142408), (302, 71204), (604, 35602), (1057, 20344), (1208, 17801), (2114, 10172), (2543, 8456), (4228, 5086)]