20121520263

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{491}}^1\times {\mathrm{547}}^1$

素因数の和:1184

約数の個数: 64

約数和(自身を含む): 30982113792

約数和(自身を除く): 10860593529

約数列:

[1, 3, 13, 17, 39, 51, 113, 221, 339, 491, 547, 663, 1469, 1473, 1641, 1921, 4407, 5763, 6383, 7111, 8347, 9299, 19149, 21333, 24973, 25041, 27897, 55483, 61811, 74919, 108511, 120887, 166449, 185433, 268577, 325533, 362661, 721279, 803543, 805731, 943211, 1050787, 2163837, 2410629, 2829633, 3152361, 3491501, 4565809, 10474503, 12261743, 13660231, 13697427, 30349201, 36785229, 40980693, 59355517, 91047603, 178066551, 394539613, 515936417, 1183618839, 1547809251, 6707173421, 20121520263]

約数ペア:

[(1, 20121520263), (3, 6707173421), (13, 1547809251), (17, 1183618839), (39, 515936417), (51, 394539613), (113, 178066551), (221, 91047603), (339, 59355517), (491, 40980693), (547, 36785229), (663, 30349201), (1469, 13697427), (1473, 13660231), (1641, 12261743), (1921, 10474503), (4407, 4565809), (5763, 3491501), (6383, 3152361), (7111, 2829633), (8347, 2410629), (9299, 2163837), (19149, 1050787), (21333, 943211), (24973, 805731), (25041, 803543), (27897, 721279), (55483, 362661), (61811, 325533), (74919, 268577), (108511, 185433), (120887, 166449)]