213667965

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21881}}^1$

素因数の和:21930

約数の個数: 48

約数和(自身を含む): 436939776

約数和(自身を除く): 223271811

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 3255, 9765, 21881, 65643, 109405, 153167, 196929, 328215, 459501, 678311, 765835, 984645, 1378503, 2034933, 2297505, 3391555, 4748177, 6104799, 6892515, 10174665, 14244531, 23740885, 30523995, 42733593, 71222655, 213667965]

約数ペア:

[(1, 213667965), (3, 71222655), (5, 42733593), (7, 30523995), (9, 23740885), (15, 14244531), (21, 10174665), (31, 6892515), (35, 6104799), (45, 4748177), (63, 3391555), (93, 2297505), (105, 2034933), (155, 1378503), (217, 984645), (279, 765835), (315, 678311), (465, 459501), (651, 328215), (1085, 196929), (1395, 153167), (1953, 109405), (3255, 65643), (9765, 21881)]