19911888

素因数分解:

$2^4\times 3^2\times {\mathrm{53}}^1\times {\mathrm{2609}}^1$

素因数の和:2676

約数の個数: 60

約数和(自身を含む): 56798820

約数和(自身を除く): 36886932

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 53, 72, 106, 144, 159, 212, 318, 424, 477, 636, 848, 954, 1272, 1908, 2544, 2609, 3816, 5218, 7632, 7827, 10436, 15654, 20872, 23481, 31308, 41744, 46962, 62616, 93924, 125232, 138277, 187848, 276554, 375696, 414831, 553108, 829662, 1106216, 1244493, 1659324, 2212432, 2488986, 3318648, 4977972, 6637296, 9955944, 19911888]

約数ペア:

[(1, 19911888), (2, 9955944), (3, 6637296), (4, 4977972), (6, 3318648), (8, 2488986), (9, 2212432), (12, 1659324), (16, 1244493), (18, 1106216), (24, 829662), (36, 553108), (48, 414831), (53, 375696), (72, 276554), (106, 187848), (144, 138277), (159, 125232), (212, 93924), (318, 62616), (424, 46962), (477, 41744), (636, 31308), (848, 23481), (954, 20872), (1272, 15654), (1908, 10436), (2544, 7827), (2609, 7632), (3816, 5218)]