20785893297

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1\times {\mathrm{389}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 31184025600

約数和(自身を除く): 10398132303

約数列:

[1, 3, 13, 31, 39, 93, 193, 229, 389, 403, 579, 687, 1167, 1209, 2509, 2977, 5057, 5983, 7099, 7527, 8931, 12059, 15171, 17949, 21297, 36177, 44197, 75077, 77779, 89081, 92287, 132591, 156767, 225231, 233337, 267243, 276861, 470301, 574561, 976001, 1158053, 1370107, 1723683, 2327387, 2761511, 2928003, 3474159, 4110321, 6982161, 8284533, 17192633, 17811391, 30256031, 35899643, 51577899, 53434173, 90768093, 107698929, 223504229, 532971623, 670512687, 1598914869, 6928631099, 20785893297]

約数ペア:

[(1, 20785893297), (3, 6928631099), (13, 1598914869), (31, 670512687), (39, 532971623), (93, 223504229), (193, 107698929), (229, 90768093), (389, 53434173), (403, 51577899), (579, 35899643), (687, 30256031), (1167, 17811391), (1209, 17192633), (2509, 8284533), (2977, 6982161), (5057, 4110321), (5983, 3474159), (7099, 2928003), (7527, 2761511), (8931, 2327387), (12059, 1723683), (15171, 1370107), (17949, 1158053), (21297, 976001), (36177, 574561), (44197, 470301), (75077, 276861), (77779, 267243), (89081, 233337), (92287, 225231), (132591, 156767)]