18920265

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 37933056

約数和(自身を除く): 19012791

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 83, 91, 105, 167, 195, 249, 273, 415, 455, 501, 581, 835, 1079, 1169, 1245, 1365, 1743, 2171, 2505, 2905, 3237, 3507, 5395, 5845, 6513, 7553, 8715, 10855, 13861, 15197, 16185, 17535, 22659, 32565, 37765, 41583, 45591, 69305, 75985, 97027, 113295, 180193, 207915, 227955, 291081, 485135, 540579, 900965, 1261351, 1455405, 2702895, 3784053, 6306755, 18920265]

約数ペア:

[(1, 18920265), (3, 6306755), (5, 3784053), (7, 2702895), (13, 1455405), (15, 1261351), (21, 900965), (35, 540579), (39, 485135), (65, 291081), (83, 227955), (91, 207915), (105, 180193), (167, 113295), (195, 97027), (249, 75985), (273, 69305), (415, 45591), (455, 41583), (501, 37765), (581, 32565), (835, 22659), (1079, 17535), (1169, 16185), (1245, 15197), (1365, 13861), (1743, 10855), (2171, 8715), (2505, 7553), (2905, 6513), (3237, 5845), (3507, 5395)]