19986772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6301}}^1$

素因数の和:6379

約数の個数: 24

約数和(自身を含む): 38290952

約数和(自身を除く): 18304180

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6301, 12602, 25204, 81913, 163826, 327652, 384361, 768722, 1537444, 4996693, 9993386, 19986772]

約数ペア:

[(1, 19986772), (2, 9993386), (4, 4996693), (13, 1537444), (26, 768722), (52, 384361), (61, 327652), (122, 163826), (244, 81913), (793, 25204), (1586, 12602), (3172, 6301)]