21784696

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{269}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 41990400

約数和(自身を除く): 20205704

約数列:

[1, 2, 4, 8, 53, 106, 191, 212, 269, 382, 424, 538, 764, 1076, 1528, 2152, 10123, 14257, 20246, 28514, 40492, 51379, 57028, 80984, 102758, 114056, 205516, 411032, 2723087, 5446174, 10892348, 21784696]

約数ペア:

[(1, 21784696), (2, 10892348), (4, 5446174), (8, 2723087), (53, 411032), (106, 205516), (191, 114056), (212, 102758), (269, 80984), (382, 57028), (424, 51379), (538, 40492), (764, 28514), (1076, 20246), (1528, 14257), (2152, 10123)]