21559128

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{997}}^1$

素因数の和:1076

約数の個数: 64

約数和(自身を含む): 58203360

約数和(自身を除く): 36644232

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, 997, 1272, 1802, 1994, 2703, 2991, 3604, 3988, 5406, 5982, 7208, 7976, 10812, 11964, 16949, 21624, 23928, 33898, 50847, 52841, 67796, 101694, 105682, 135592, 158523, 203388, 211364, 317046, 406776, 422728, 634092, 898297, 1268184, 1796594, 2694891, 3593188, 5389782, 7186376, 10779564, 21559128]

約数ペア:

[(1, 21559128), (2, 10779564), (3, 7186376), (4, 5389782), (6, 3593188), (8, 2694891), (12, 1796594), (17, 1268184), (24, 898297), (34, 634092), (51, 422728), (53, 406776), (68, 317046), (102, 211364), (106, 203388), (136, 158523), (159, 135592), (204, 105682), (212, 101694), (318, 67796), (408, 52841), (424, 50847), (636, 33898), (901, 23928), (997, 21624), (1272, 16949), (1802, 11964), (1994, 10812), (2703, 7976), (2991, 7208), (3604, 5982), (3988, 5406)]