20119099

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 27417600

約数和(自身を除く): 7298501

約数列:

[1, 7, 11, 13, 77, 91, 101, 143, 199, 707, 1001, 1111, 1313, 1393, 2189, 2587, 7777, 9191, 14443, 15323, 18109, 20099, 28457, 101101, 140693, 199199, 221089, 261287, 1547623, 1829009, 2874157, 20119099]

約数ペア:

[(1, 20119099), (7, 2874157), (11, 1829009), (13, 1547623), (77, 261287), (91, 221089), (101, 199199), (143, 140693), (199, 101101), (707, 28457), (1001, 20099), (1111, 18109), (1313, 15323), (1393, 14443), (2189, 9191), (2587, 7777)]