20647172

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{433}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 44913792

約数和(自身を除く): 24266620

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 131, 182, 262, 364, 433, 524, 866, 917, 1703, 1732, 1834, 3031, 3406, 3668, 5629, 6062, 6812, 11258, 11921, 12124, 22516, 23842, 39403, 47684, 56723, 78806, 113446, 157612, 226892, 397061, 737399, 794122, 1474798, 1588244, 2949596, 5161793, 10323586, 20647172]

約数ペア:

[(1, 20647172), (2, 10323586), (4, 5161793), (7, 2949596), (13, 1588244), (14, 1474798), (26, 794122), (28, 737399), (52, 397061), (91, 226892), (131, 157612), (182, 113446), (262, 78806), (364, 56723), (433, 47684), (524, 39403), (866, 23842), (917, 22516), (1703, 12124), (1732, 11921), (1834, 11258), (3031, 6812), (3406, 6062), (3668, 5629)]