21228350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2969}}^1$

素因数の和:3005

約数の個数: 48

約数和(自身を含む): 46403280

約数和(自身を除く): 25174930

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 275, 286, 325, 550, 650, 715, 1430, 2969, 3575, 5938, 7150, 14845, 29690, 32659, 38597, 65318, 74225, 77194, 148450, 163295, 192985, 326590, 385970, 424567, 816475, 849134, 964925, 1632950, 1929850, 2122835, 4245670, 10614175, 21228350]

約数ペア:

[(1, 21228350), (2, 10614175), (5, 4245670), (10, 2122835), (11, 1929850), (13, 1632950), (22, 964925), (25, 849134), (26, 816475), (50, 424567), (55, 385970), (65, 326590), (110, 192985), (130, 163295), (143, 148450), (275, 77194), (286, 74225), (325, 65318), (550, 38597), (650, 32659), (715, 29690), (1430, 14845), (2969, 7150), (3575, 5938)]