21241944

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^2\times {\mathrm{307}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 59639580

約数和(自身を除く): 38397636

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 62, 72, 93, 124, 186, 248, 279, 307, 372, 558, 614, 744, 921, 961, 1116, 1228, 1842, 1922, 2232, 2456, 2763, 2883, 3684, 3844, 5526, 5766, 7368, 7688, 8649, 9517, 11052, 11532, 17298, 19034, 22104, 23064, 28551, 34596, 38068, 57102, 69192, 76136, 85653, 114204, 171306, 228408, 295027, 342612, 590054, 685224, 885081, 1180108, 1770162, 2360216, 2655243, 3540324, 5310486, 7080648, 10620972, 21241944]

約数ペア:

[(1, 21241944), (2, 10620972), (3, 7080648), (4, 5310486), (6, 3540324), (8, 2655243), (9, 2360216), (12, 1770162), (18, 1180108), (24, 885081), (31, 685224), (36, 590054), (62, 342612), (72, 295027), (93, 228408), (124, 171306), (186, 114204), (248, 85653), (279, 76136), (307, 69192), (372, 57102), (558, 38068), (614, 34596), (744, 28551), (921, 23064), (961, 22104), (1116, 19034), (1228, 17298), (1842, 11532), (1922, 11052), (2232, 9517), (2456, 8649), (2763, 7688), (2883, 7368), (3684, 5766), (3844, 5526)]