21000298466

素因数分解:

$2^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{653}}^1\times {\mathrm{10301}}^1$

素因数の和:11186

約数の個数: 32

約数和(自身を含む): 36220843008

約数和(自身を除く): 15220544542

約数列:

[1, 2, 7, 14, 223, 446, 653, 1306, 1561, 3122, 4571, 9142, 10301, 20602, 72107, 144214, 145619, 291238, 1019333, 2038666, 2297123, 4594246, 6726553, 13453106, 16079861, 32159722, 47085871, 94171742, 1500021319, 3000042638, 10500149233, 21000298466]

約数ペア:

[(1, 21000298466), (2, 10500149233), (7, 3000042638), (14, 1500021319), (223, 94171742), (446, 47085871), (653, 32159722), (1306, 16079861), (1561, 13453106), (3122, 6726553), (4571, 4594246), (9142, 2297123), (10301, 2038666), (20602, 1019333), (72107, 291238), (144214, 145619)]