20356707

素因数分解:

$3^1\times 7^3\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:368

約数の個数: 32

約数和(自身を含む): 32204800

約数和(自身を除く): 11848093

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 271, 343, 511, 813, 1029, 1533, 1897, 3577, 5691, 10731, 13279, 19783, 25039, 39837, 59349, 75117, 92953, 138481, 278859, 415443, 969367, 2908101, 6785569, 20356707]

約数ペア:

[(1, 20356707), (3, 6785569), (7, 2908101), (21, 969367), (49, 415443), (73, 278859), (147, 138481), (219, 92953), (271, 75117), (343, 59349), (511, 39837), (813, 25039), (1029, 19783), (1533, 13279), (1897, 10731), (3577, 5691)]