21448466

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 37946880

約数和(自身を除く): 16498414

約数列:

[1, 2, 13, 23, 26, 31, 46, 62, 89, 169, 178, 299, 338, 403, 598, 713, 806, 1157, 1426, 2047, 2314, 2759, 3887, 4094, 5239, 5518, 7774, 9269, 10478, 15041, 18538, 26611, 30082, 35867, 53222, 63457, 71734, 120497, 126914, 240994, 345943, 466271, 691886, 824941, 932542, 1649882, 10724233, 21448466]

約数ペア:

[(1, 21448466), (2, 10724233), (13, 1649882), (23, 932542), (26, 824941), (31, 691886), (46, 466271), (62, 345943), (89, 240994), (169, 126914), (178, 120497), (299, 71734), (338, 63457), (403, 53222), (598, 35867), (713, 30082), (806, 26611), (1157, 18538), (1426, 15041), (2047, 10478), (2314, 9269), (2759, 7774), (3887, 5518), (4094, 5239)]