20657427

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2251}}^1$

素因数の和:2303

約数の個数: 32

約数和(自身を含む): 34590720

約数和(自身を除く): 13933293

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 2251, 3059, 6753, 9177, 15757, 42769, 47271, 51773, 128307, 155319, 299383, 362411, 898149, 983687, 1087233, 2951061, 6885809, 20657427]

約数ペア:

[(1, 20657427), (3, 6885809), (7, 2951061), (19, 1087233), (21, 983687), (23, 898149), (57, 362411), (69, 299383), (133, 155319), (161, 128307), (399, 51773), (437, 47271), (483, 42769), (1311, 15757), (2251, 9177), (3059, 6753)]