21116862

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:335

約数の個数: 80

約数和(自身を含む): 52527552

約数和(自身を除く): 31410690

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 37, 39, 54, 74, 78, 81, 111, 117, 162, 222, 234, 271, 333, 351, 481, 542, 666, 702, 813, 962, 999, 1053, 1443, 1626, 1998, 2106, 2439, 2886, 2997, 3523, 4329, 4878, 5994, 7046, 7317, 8658, 10027, 10569, 12987, 14634, 20054, 21138, 21951, 25974, 30081, 31707, 38961, 43902, 60162, 63414, 77922, 90243, 95121, 130351, 180486, 190242, 260702, 270729, 285363, 391053, 541458, 570726, 782106, 812187, 1173159, 1624374, 2346318, 3519477, 7038954, 10558431, 21116862]

約数ペア:

[(1, 21116862), (2, 10558431), (3, 7038954), (6, 3519477), (9, 2346318), (13, 1624374), (18, 1173159), (26, 812187), (27, 782106), (37, 570726), (39, 541458), (54, 391053), (74, 285363), (78, 270729), (81, 260702), (111, 190242), (117, 180486), (162, 130351), (222, 95121), (234, 90243), (271, 77922), (333, 63414), (351, 60162), (481, 43902), (542, 38961), (666, 31707), (702, 30081), (813, 25974), (962, 21951), (999, 21138), (1053, 20054), (1443, 14634), (1626, 12987), (1998, 10569), (2106, 10027), (2439, 8658), (2886, 7317), (2997, 7046), (3523, 5994), (4329, 4878)]