21709590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5441}}^1$

素因数の和:5477

約数の個数: 64

約数和(自身を含む): 62691840

約数和(自身を除く): 40982250

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 5441, 10882, 16323, 27205, 32646, 38087, 54410, 76174, 81615, 103379, 114261, 163230, 190435, 206758, 228522, 310137, 380870, 516895, 571305, 620274, 723653, 1033790, 1142610, 1447306, 1550685, 2170959, 3101370, 3618265, 4341918, 7236530, 10854795, 21709590]

約数ペア:

[(1, 21709590), (2, 10854795), (3, 7236530), (5, 4341918), (6, 3618265), (7, 3101370), (10, 2170959), (14, 1550685), (15, 1447306), (19, 1142610), (21, 1033790), (30, 723653), (35, 620274), (38, 571305), (42, 516895), (57, 380870), (70, 310137), (95, 228522), (105, 206758), (114, 190435), (133, 163230), (190, 114261), (210, 103379), (266, 81615), (285, 76174), (399, 54410), (570, 38087), (665, 32646), (798, 27205), (1330, 16323), (1995, 10882), (3990, 5441)]