25470921

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 40403968

約数和(自身を除く): 14933047

約数列:

[1, 3, 7, 21, 43, 67, 129, 201, 301, 421, 469, 903, 1263, 1407, 2881, 2947, 8643, 8841, 18103, 20167, 28207, 54309, 60501, 84621, 126721, 197449, 380163, 592347, 1212901, 3638703, 8490307, 25470921]

約数ペア:

[(1, 25470921), (3, 8490307), (7, 3638703), (21, 1212901), (43, 592347), (67, 380163), (129, 197449), (201, 126721), (301, 84621), (421, 60501), (469, 54309), (903, 28207), (1263, 20167), (1407, 18103), (2881, 8841), (2947, 8643)]