21554052

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4457}}^1$

素因数の和:4508

約数の個数: 48

約数和(自身を含む): 55921152

約数和(自身を除く): 34367100

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4457, 4836, 8914, 13371, 17828, 26742, 53484, 57941, 115882, 138167, 173823, 231764, 276334, 347646, 414501, 552668, 695292, 829002, 1658004, 1796171, 3592342, 5388513, 7184684, 10777026, 21554052]

約数ペア:

[(1, 21554052), (2, 10777026), (3, 7184684), (4, 5388513), (6, 3592342), (12, 1796171), (13, 1658004), (26, 829002), (31, 695292), (39, 552668), (52, 414501), (62, 347646), (78, 276334), (93, 231764), (124, 173823), (156, 138167), (186, 115882), (372, 57941), (403, 53484), (806, 26742), (1209, 17828), (1612, 13371), (2418, 8914), (4457, 4836)]