15121821

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 23990400

約数和(自身を除く): 8868579

約数列:

[1, 3, 11, 13, 33, 39, 101, 143, 303, 349, 429, 1047, 1111, 1313, 3333, 3839, 3939, 4537, 11517, 13611, 14443, 35249, 43329, 49907, 105747, 149721, 387739, 458237, 1163217, 1374711, 5040607, 15121821]

約数ペア:

[(1, 15121821), (3, 5040607), (11, 1374711), (13, 1163217), (33, 458237), (39, 387739), (101, 149721), (143, 105747), (303, 49907), (349, 43329), (429, 35249), (1047, 14443), (1111, 13611), (1313, 11517), (3333, 4537), (3839, 3939)]