18794769

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 29804544

約数和(自身を除く): 11009775

約数列:

[1, 3, 7, 21, 41, 83, 123, 249, 263, 287, 581, 789, 861, 1743, 1841, 3403, 5523, 10209, 10783, 21829, 23821, 32349, 65487, 71463, 75481, 152803, 226443, 458409, 894989, 2684967, 6264923, 18794769]

約数ペア:

[(1, 18794769), (3, 6264923), (7, 2684967), (21, 894989), (41, 458409), (83, 226443), (123, 152803), (249, 75481), (263, 71463), (287, 65487), (581, 32349), (789, 23821), (861, 21829), (1743, 10783), (1841, 10209), (3403, 5523)]