20794095

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 20719377

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 251, 263, 315, 753, 789, 1255, 1315, 1757, 1841, 2259, 2367, 3765, 3945, 5271, 5523, 8785, 9205, 11295, 11835, 15813, 16569, 26355, 27615, 66013, 79065, 82845, 198039, 330065, 462091, 594117, 990195, 1386273, 2310455, 2970585, 4158819, 6931365, 20794095]

約数ペア:

[(1, 20794095), (3, 6931365), (5, 4158819), (7, 2970585), (9, 2310455), (15, 1386273), (21, 990195), (35, 594117), (45, 462091), (63, 330065), (105, 198039), (251, 82845), (263, 79065), (315, 66013), (753, 27615), (789, 26355), (1255, 16569), (1315, 15813), (1757, 11835), (1841, 11295), (2259, 9205), (2367, 8785), (3765, 5523), (3945, 5271)]