21605326

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 13876274

約数列:

[1, 2, 23, 31, 46, 62, 109, 139, 218, 278, 713, 1426, 2507, 3197, 3379, 4309, 5014, 6394, 6758, 8618, 15151, 30302, 77717, 99107, 155434, 198214, 348473, 469681, 696946, 939362, 10802663, 21605326]

約数ペア:

[(1, 21605326), (2, 10802663), (23, 939362), (31, 696946), (46, 469681), (62, 348473), (109, 198214), (139, 155434), (218, 99107), (278, 77717), (713, 30302), (1426, 15151), (2507, 8618), (3197, 6758), (3379, 6394), (4309, 5014)]