21502468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13339}}^1$

素因数の和:13387

約数の個数: 24

約数和(自身を含む): 41834240

約数和(自身を除く): 20331772

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 13339, 26678, 53356, 173407, 346814, 413509, 693628, 827018, 1654036, 5375617, 10751234, 21502468]

約数ペア:

[(1, 21502468), (2, 10751234), (4, 5375617), (13, 1654036), (26, 827018), (31, 693628), (52, 413509), (62, 346814), (124, 173407), (403, 53356), (806, 26678), (1612, 13339)]