21006780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18427}}^1$

素因数の和:18458

約数の個数: 48

約数和(自身を含む): 61918080

約数和(自身を除く): 40911300

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, 18427, 36854, 55281, 73708, 92135, 110562, 184270, 221124, 276405, 350113, 368540, 552810, 700226, 1050339, 1105620, 1400452, 1750565, 2100678, 3501130, 4201356, 5251695, 7002260, 10503390, 21006780]

約数ペア:

[(1, 21006780), (2, 10503390), (3, 7002260), (4, 5251695), (5, 4201356), (6, 3501130), (10, 2100678), (12, 1750565), (15, 1400452), (19, 1105620), (20, 1050339), (30, 700226), (38, 552810), (57, 368540), (60, 350113), (76, 276405), (95, 221124), (114, 184270), (190, 110562), (228, 92135), (285, 73708), (380, 55281), (570, 36854), (1140, 18427)]