21475818

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1873}}^1$

素因数の和:1908

約数の個数: 72

約数和(自身を含む): 58322628

約数和(自身を除く): 36846810

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 147, 182, 234, 273, 294, 441, 546, 637, 819, 882, 1274, 1638, 1873, 1911, 3746, 3822, 5619, 5733, 11238, 11466, 13111, 16857, 24349, 26222, 33714, 39333, 48698, 73047, 78666, 91777, 117999, 146094, 170443, 183554, 219141, 235998, 275331, 340886, 438282, 511329, 550662, 825993, 1022658, 1193101, 1533987, 1651986, 2386202, 3067974, 3579303, 7158606, 10737909, 21475818]

約数ペア:

[(1, 21475818), (2, 10737909), (3, 7158606), (6, 3579303), (7, 3067974), (9, 2386202), (13, 1651986), (14, 1533987), (18, 1193101), (21, 1022658), (26, 825993), (39, 550662), (42, 511329), (49, 438282), (63, 340886), (78, 275331), (91, 235998), (98, 219141), (117, 183554), (126, 170443), (147, 146094), (182, 117999), (234, 91777), (273, 78666), (294, 73047), (441, 48698), (546, 39333), (637, 33714), (819, 26222), (882, 24349), (1274, 16857), (1638, 13111), (1873, 11466), (1911, 11238), (3746, 5733), (3822, 5619)]