21256392

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{983}}^1$

素因数の和:1062

約数の個数: 64

約数和(自身を含む): 57386880

約数和(自身を除く): 36130488

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 53, 68, 102, 106, 136, 159, 204, 212, 318, 408, 424, 636, 901, 983, 1272, 1802, 1966, 2703, 2949, 3604, 3932, 5406, 5898, 7208, 7864, 10812, 11796, 16711, 21624, 23592, 33422, 50133, 52099, 66844, 100266, 104198, 133688, 156297, 200532, 208396, 312594, 401064, 416792, 625188, 885683, 1250376, 1771366, 2657049, 3542732, 5314098, 7085464, 10628196, 21256392]

約数ペア:

[(1, 21256392), (2, 10628196), (3, 7085464), (4, 5314098), (6, 3542732), (8, 2657049), (12, 1771366), (17, 1250376), (24, 885683), (34, 625188), (51, 416792), (53, 401064), (68, 312594), (102, 208396), (106, 200532), (136, 156297), (159, 133688), (204, 104198), (212, 100266), (318, 66844), (408, 52099), (424, 50133), (636, 33422), (901, 23592), (983, 21624), (1272, 16711), (1802, 11796), (1966, 10812), (2703, 7864), (2949, 7208), (3604, 5898), (3932, 5406)]