21079812

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{829}}^1$

素因数の和:1012

約数の個数: 48

約数和(自身を含む): 53359040

約数和(自身を除く): 32279228

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 163, 326, 489, 652, 829, 978, 1658, 1956, 2119, 2487, 3316, 4238, 4974, 6357, 8476, 9948, 10777, 12714, 21554, 25428, 32331, 43108, 64662, 129324, 135127, 270254, 405381, 540508, 810762, 1621524, 1756651, 3513302, 5269953, 7026604, 10539906, 21079812]

約数ペア:

[(1, 21079812), (2, 10539906), (3, 7026604), (4, 5269953), (6, 3513302), (12, 1756651), (13, 1621524), (26, 810762), (39, 540508), (52, 405381), (78, 270254), (156, 135127), (163, 129324), (326, 64662), (489, 43108), (652, 32331), (829, 25428), (978, 21554), (1658, 12714), (1956, 10777), (2119, 9948), (2487, 8476), (3316, 6357), (4238, 4974)]