21207408064

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19492103}}^1$

素因数の和:19492132

約数の個数: 28

約数和(自身を含む): 44558949744

約数和(自身を除く): 23351541680

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 19492103, 38984206, 77968412, 155936824, 311873648, 331365751, 623747296, 662731502, 1247494592, 1325463004, 2650926008, 5301852016, 10603704032, 21207408064]

約数ペア:

[(1, 21207408064), (2, 10603704032), (4, 5301852016), (8, 2650926008), (16, 1325463004), (17, 1247494592), (32, 662731502), (34, 623747296), (64, 331365751), (68, 311873648), (136, 155936824), (272, 77968412), (544, 38984206), (1088, 19492103)]