21096530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 26319790

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 97, 130, 182, 194, 239, 455, 478, 485, 679, 910, 970, 1195, 1261, 1358, 1673, 2390, 2522, 3107, 3346, 3395, 6214, 6305, 6790, 8365, 8827, 12610, 15535, 16730, 17654, 21749, 23183, 31070, 43498, 44135, 46366, 88270, 108745, 115915, 162281, 217490, 231830, 301379, 324562, 602758, 811405, 1506895, 1622810, 2109653, 3013790, 4219306, 10548265, 21096530]

約数ペア:

[(1, 21096530), (2, 10548265), (5, 4219306), (7, 3013790), (10, 2109653), (13, 1622810), (14, 1506895), (26, 811405), (35, 602758), (65, 324562), (70, 301379), (91, 231830), (97, 217490), (130, 162281), (182, 115915), (194, 108745), (239, 88270), (455, 46366), (478, 44135), (485, 43498), (679, 31070), (910, 23183), (970, 21749), (1195, 17654), (1261, 16730), (1358, 15535), (1673, 12610), (2390, 8827), (2522, 8365), (3107, 6790), (3346, 6305), (3395, 6214)]