21121674

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{83}}^2$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 49536192

約数和(自身を除く): 28414518

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 73, 83, 146, 166, 219, 249, 438, 498, 511, 581, 1022, 1162, 1533, 1743, 3066, 3486, 6059, 6889, 12118, 13778, 18177, 20667, 36354, 41334, 42413, 48223, 84826, 96446, 127239, 144669, 254478, 289338, 502897, 1005794, 1508691, 3017382, 3520279, 7040558, 10560837, 21121674]

約数ペア:

[(1, 21121674), (2, 10560837), (3, 7040558), (6, 3520279), (7, 3017382), (14, 1508691), (21, 1005794), (42, 502897), (73, 289338), (83, 254478), (146, 144669), (166, 127239), (219, 96446), (249, 84826), (438, 48223), (498, 42413), (511, 41334), (581, 36354), (1022, 20667), (1162, 18177), (1533, 13778), (1743, 12118), (3066, 6889), (3486, 6059)]