18905172

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1$

素因数の和:533

約数の個数: 96

約数和(自身を含む): 54190080

約数和(自身を除く): 35284908

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 23, 26, 33, 39, 44, 46, 52, 66, 69, 78, 92, 132, 138, 143, 156, 253, 276, 286, 299, 429, 479, 506, 572, 598, 759, 858, 897, 958, 1012, 1196, 1437, 1518, 1716, 1794, 1916, 2874, 3036, 3289, 3588, 5269, 5748, 6227, 6578, 9867, 10538, 11017, 12454, 13156, 15807, 18681, 19734, 21076, 22034, 24908, 31614, 33051, 37362, 39468, 44068, 63228, 66102, 68497, 74724, 121187, 132204, 136994, 143221, 205491, 242374, 273988, 286442, 363561, 410982, 429663, 484748, 572884, 727122, 821964, 859326, 1454244, 1575431, 1718652, 3150862, 4726293, 6301724, 9452586, 18905172]

約数ペア:

[(1, 18905172), (2, 9452586), (3, 6301724), (4, 4726293), (6, 3150862), (11, 1718652), (12, 1575431), (13, 1454244), (22, 859326), (23, 821964), (26, 727122), (33, 572884), (39, 484748), (44, 429663), (46, 410982), (52, 363561), (66, 286442), (69, 273988), (78, 242374), (92, 205491), (132, 143221), (138, 136994), (143, 132204), (156, 121187), (253, 74724), (276, 68497), (286, 66102), (299, 63228), (429, 44068), (479, 39468), (506, 37362), (572, 33051), (598, 31614), (759, 24908), (858, 22034), (897, 21076), (958, 19734), (1012, 18681), (1196, 15807), (1437, 13156), (1518, 12454), (1716, 11017), (1794, 10538), (1916, 9867), (2874, 6578), (3036, 6227), (3289, 5748), (3588, 5269)]