21881412

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2801}}^1$

素因数の和:2849

約数の個数: 72

約数和(自身を含む): 65275392

約数和(自身を除く): 43393980

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2604, 2801, 3906, 5602, 7812, 8403, 11204, 16806, 19607, 25209, 33612, 39214, 50418, 58821, 78428, 86831, 100836, 117642, 173662, 176463, 235284, 260493, 347324, 352926, 520986, 607817, 705852, 781479, 1041972, 1215634, 1562958, 1823451, 2431268, 3125916, 3646902, 5470353, 7293804, 10940706, 21881412]

約数ペア:

[(1, 21881412), (2, 10940706), (3, 7293804), (4, 5470353), (6, 3646902), (7, 3125916), (9, 2431268), (12, 1823451), (14, 1562958), (18, 1215634), (21, 1041972), (28, 781479), (31, 705852), (36, 607817), (42, 520986), (62, 352926), (63, 347324), (84, 260493), (93, 235284), (124, 176463), (126, 173662), (186, 117642), (217, 100836), (252, 86831), (279, 78428), (372, 58821), (434, 50418), (558, 39214), (651, 33612), (868, 25209), (1116, 19607), (1302, 16806), (1953, 11204), (2604, 8403), (2801, 7812), (3906, 5602)]