642278013

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{10687}}^1$

素因数の和:10793

約数の個数: 32

約数和(自身を含む): 976797696

約数和(自身を除く): 334519683

約数列:

[1, 3, 13, 23, 39, 67, 69, 201, 299, 871, 897, 1541, 2613, 4623, 10687, 20033, 32061, 60099, 138931, 245801, 416793, 716029, 737403, 2148087, 3195413, 9308377, 9586239, 16468667, 27925131, 49406001, 214092671, 642278013]

約数ペア:

[(1, 642278013), (3, 214092671), (13, 49406001), (23, 27925131), (39, 16468667), (67, 9586239), (69, 9308377), (201, 3195413), (299, 2148087), (871, 737403), (897, 716029), (1541, 416793), (2613, 245801), (4623, 138931), (10687, 60099), (20033, 32061)]