2137905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{617}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 4627584

約数和(自身を除く): 2489679

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 617, 693, 1155, 1851, 3085, 3465, 4319, 5553, 6787, 9255, 12957, 20361, 21595, 27765, 33935, 38871, 47509, 61083, 64785, 101805, 142527, 194355, 237545, 305415, 427581, 712635, 2137905]

約数ペア:

[(1, 2137905), (3, 712635), (5, 427581), (7, 305415), (9, 237545), (11, 194355), (15, 142527), (21, 101805), (33, 64785), (35, 61083), (45, 47509), (55, 38871), (63, 33935), (77, 27765), (99, 21595), (105, 20361), (165, 12957), (231, 9255), (315, 6787), (385, 5553), (495, 4319), (617, 3465), (693, 3085), (1155, 1851)]