21820740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19141}}^1$

素因数の和:19172

約数の個数: 48

約数和(自身を含む): 64317120

約数和(自身を除く): 42496380

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, 19141, 38282, 57423, 76564, 95705, 114846, 191410, 229692, 287115, 363679, 382820, 574230, 727358, 1091037, 1148460, 1454716, 1818395, 2182074, 3636790, 4364148, 5455185, 7273580, 10910370, 21820740]

約数ペア:

[(1, 21820740), (2, 10910370), (3, 7273580), (4, 5455185), (5, 4364148), (6, 3636790), (10, 2182074), (12, 1818395), (15, 1454716), (19, 1148460), (20, 1091037), (30, 727358), (38, 574230), (57, 382820), (60, 363679), (76, 287115), (95, 229692), (114, 191410), (190, 114846), (228, 95705), (285, 76564), (380, 57423), (570, 38282), (1140, 19141)]