19688031

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:308

約数の個数: 36

約数和(自身を含む): 31744440

約数和(自身を除く): 12056409

約数列:

[1, 3, 9, 11, 33, 99, 101, 121, 179, 303, 363, 537, 909, 1089, 1111, 1611, 1969, 3333, 5907, 9999, 12221, 17721, 18079, 21659, 36663, 54237, 64977, 109989, 162711, 194931, 198869, 596607, 1789821, 2187559, 6562677, 19688031]

約数ペア:

[(1, 19688031), (3, 6562677), (9, 2187559), (11, 1789821), (33, 596607), (99, 198869), (101, 194931), (121, 162711), (179, 109989), (303, 64977), (363, 54237), (537, 36663), (909, 21659), (1089, 18079), (1111, 17721), (1611, 12221), (1969, 9999), (3333, 5907)]