19641996

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 54656784

約数和(自身を除く): 35014788

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 193, 198, 257, 386, 396, 514, 579, 771, 772, 1028, 1158, 1542, 1737, 2123, 2313, 2316, 2827, 3084, 3474, 4246, 4626, 5654, 6369, 6948, 8481, 8492, 9252, 11308, 12738, 16962, 19107, 25443, 25476, 33924, 38214, 49601, 50886, 76428, 99202, 101772, 148803, 198404, 297606, 446409, 545611, 595212, 892818, 1091222, 1636833, 1785636, 2182444, 3273666, 4910499, 6547332, 9820998, 19641996]

約数ペア:

[(1, 19641996), (2, 9820998), (3, 6547332), (4, 4910499), (6, 3273666), (9, 2182444), (11, 1785636), (12, 1636833), (18, 1091222), (22, 892818), (33, 595212), (36, 545611), (44, 446409), (66, 297606), (99, 198404), (132, 148803), (193, 101772), (198, 99202), (257, 76428), (386, 50886), (396, 49601), (514, 38214), (579, 33924), (771, 25476), (772, 25443), (1028, 19107), (1158, 16962), (1542, 12738), (1737, 11308), (2123, 9252), (2313, 8492), (2316, 8481), (2827, 6948), (3084, 6369), (3474, 5654), (4246, 4626)]