21240456

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{28549}}^1$

素因数の和:28589

約数の個数: 32

約数和(自身を含む): 54816000

約数和(自身を除く): 33575544

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 372, 744, 28549, 57098, 85647, 114196, 171294, 228392, 342588, 685176, 885019, 1770038, 2655057, 3540076, 5310114, 7080152, 10620228, 21240456]

約数ペア:

[(1, 21240456), (2, 10620228), (3, 7080152), (4, 5310114), (6, 3540076), (8, 2655057), (12, 1770038), (24, 885019), (31, 685176), (62, 342588), (93, 228392), (124, 171294), (186, 114196), (248, 85647), (372, 57098), (744, 28549)]