20950065

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{229}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 38750400

約数和(自身を除く): 17800335

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 107, 171, 229, 285, 321, 535, 687, 855, 963, 1145, 1605, 2033, 2061, 3435, 4351, 4815, 6099, 10165, 10305, 13053, 18297, 21755, 24503, 30495, 39159, 65265, 73509, 91485, 122515, 195795, 220527, 367545, 465557, 1102635, 1396671, 2327785, 4190013, 6983355, 20950065]

約数ペア:

[(1, 20950065), (3, 6983355), (5, 4190013), (9, 2327785), (15, 1396671), (19, 1102635), (45, 465557), (57, 367545), (95, 220527), (107, 195795), (171, 122515), (229, 91485), (285, 73509), (321, 65265), (535, 39159), (687, 30495), (855, 24503), (963, 21755), (1145, 18297), (1605, 13053), (2033, 10305), (2061, 10165), (3435, 6099), (4351, 4815)]