21226700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{839}}^1$

素因数の和:887

約数の個数: 72

約数和(自身を含む): 52496640

約数和(自身を除く): 31269940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 220, 230, 253, 275, 460, 506, 550, 575, 839, 1012, 1100, 1150, 1265, 1678, 2300, 2530, 3356, 4195, 5060, 6325, 8390, 9229, 12650, 16780, 18458, 19297, 20975, 25300, 36916, 38594, 41950, 46145, 77188, 83900, 92290, 96485, 184580, 192970, 212267, 230725, 385940, 424534, 461450, 482425, 849068, 922900, 964850, 1061335, 1929700, 2122670, 4245340, 5306675, 10613350, 21226700]

約数ペア:

[(1, 21226700), (2, 10613350), (4, 5306675), (5, 4245340), (10, 2122670), (11, 1929700), (20, 1061335), (22, 964850), (23, 922900), (25, 849068), (44, 482425), (46, 461450), (50, 424534), (55, 385940), (92, 230725), (100, 212267), (110, 192970), (115, 184580), (220, 96485), (230, 92290), (253, 83900), (275, 77188), (460, 46145), (506, 41950), (550, 38594), (575, 36916), (839, 25300), (1012, 20975), (1100, 19297), (1150, 18458), (1265, 16780), (1678, 12650), (2300, 9229), (2530, 8390), (3356, 6325), (4195, 5060)]