21339660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18719}}^1$

素因数の和:18750

約数の個数: 48

約数和(自身を含む): 62899200

約数和(自身を除く): 41559540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18719, 37438, 56157, 74876, 93595, 112314, 187190, 224628, 280785, 355661, 374380, 561570, 711322, 1066983, 1123140, 1422644, 1778305, 2133966, 3556610, 4267932, 5334915, 7113220, 10669830, 21339660]

約数ペア:

[(1, 21339660), (2, 10669830), (3, 7113220), (4, 5334915), (5, 4267932), (6, 3556610), (10, 2133966), (12, 1778305), (15, 1422644), (19, 1123140), (20, 1066983), (30, 711322), (38, 561570), (57, 374380), (60, 355661), (76, 280785), (95, 224628), (114, 187190), (190, 112314), (228, 93595), (285, 74876), (380, 56157), (570, 37438), (1140, 18719)]