21188040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9293}}^1$

素因数の和:9326

約数の個数: 64

約数和(自身を含む): 66916800

約数和(自身を除く): 45728760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9293, 18586, 27879, 37172, 46465, 55758, 74344, 92930, 111516, 139395, 176567, 185860, 223032, 278790, 353134, 371720, 529701, 557580, 706268, 882835, 1059402, 1115160, 1412536, 1765670, 2118804, 2648505, 3531340, 4237608, 5297010, 7062680, 10594020, 21188040]

約数ペア:

[(1, 21188040), (2, 10594020), (3, 7062680), (4, 5297010), (5, 4237608), (6, 3531340), (8, 2648505), (10, 2118804), (12, 1765670), (15, 1412536), (19, 1115160), (20, 1059402), (24, 882835), (30, 706268), (38, 557580), (40, 529701), (57, 371720), (60, 353134), (76, 278790), (95, 223032), (114, 185860), (120, 176567), (152, 139395), (190, 111516), (228, 92930), (285, 74344), (380, 55758), (456, 46465), (570, 37172), (760, 27879), (1140, 18586), (2280, 9293)]