19563912

素因数分解:

$2^3\times 3^2\times {\mathrm{163}}^1\times {\mathrm{1667}}^1$

素因数の和:1842

約数の個数: 48

約数和(自身を含む): 53342640

約数和(自身を除く): 33778728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 163, 326, 489, 652, 978, 1304, 1467, 1667, 1956, 2934, 3334, 3912, 5001, 5868, 6668, 10002, 11736, 13336, 15003, 20004, 30006, 40008, 60012, 120024, 271721, 543442, 815163, 1086884, 1630326, 2173768, 2445489, 3260652, 4890978, 6521304, 9781956, 19563912]

約数ペア:

[(1, 19563912), (2, 9781956), (3, 6521304), (4, 4890978), (6, 3260652), (8, 2445489), (9, 2173768), (12, 1630326), (18, 1086884), (24, 815163), (36, 543442), (72, 271721), (163, 120024), (326, 60012), (489, 40008), (652, 30006), (978, 20004), (1304, 15003), (1467, 13336), (1667, 11736), (1956, 10002), (2934, 6668), (3334, 5868), (3912, 5001)]