21609276

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1951}}^1$

素因数の和:2042

約数の個数: 48

約数和(自身を含む): 55093248

約数和(自身を除く): 33483972

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 142, 156, 213, 284, 426, 852, 923, 1846, 1951, 2769, 3692, 3902, 5538, 5853, 7804, 11076, 11706, 23412, 25363, 50726, 76089, 101452, 138521, 152178, 277042, 304356, 415563, 554084, 831126, 1662252, 1800773, 3601546, 5402319, 7203092, 10804638, 21609276]

約数ペア:

[(1, 21609276), (2, 10804638), (3, 7203092), (4, 5402319), (6, 3601546), (12, 1800773), (13, 1662252), (26, 831126), (39, 554084), (52, 415563), (71, 304356), (78, 277042), (142, 152178), (156, 138521), (213, 101452), (284, 76089), (426, 50726), (852, 25363), (923, 23412), (1846, 11706), (1951, 11076), (2769, 7804), (3692, 5853), (3902, 5538)]