21679658

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:77

約数の個数: 96

約数和(自身を含む): 47433600

約数和(自身を除く): 25753942

約数列:

[1, 2, 7, 11, 13, 14, 17, 22, 26, 34, 49, 77, 91, 98, 119, 143, 154, 169, 182, 187, 221, 238, 286, 338, 343, 374, 442, 539, 637, 686, 833, 1001, 1078, 1183, 1274, 1309, 1547, 1666, 1859, 2002, 2366, 2431, 2618, 2873, 3094, 3718, 3773, 4459, 4862, 5746, 5831, 7007, 7546, 8281, 8918, 9163, 10829, 11662, 13013, 14014, 16562, 17017, 18326, 20111, 21658, 26026, 31603, 34034, 40222, 49049, 57967, 63206, 64141, 75803, 91091, 98098, 115934, 119119, 128282, 140777, 151606, 182182, 221221, 238238, 281554, 442442, 637637, 833833, 985439, 1275274, 1548547, 1667666, 1970878, 3097094, 10839829, 21679658]

約数ペア:

[(1, 21679658), (2, 10839829), (7, 3097094), (11, 1970878), (13, 1667666), (14, 1548547), (17, 1275274), (22, 985439), (26, 833833), (34, 637637), (49, 442442), (77, 281554), (91, 238238), (98, 221221), (119, 182182), (143, 151606), (154, 140777), (169, 128282), (182, 119119), (187, 115934), (221, 98098), (238, 91091), (286, 75803), (338, 64141), (343, 63206), (374, 57967), (442, 49049), (539, 40222), (637, 34034), (686, 31603), (833, 26026), (1001, 21658), (1078, 20111), (1183, 18326), (1274, 17017), (1309, 16562), (1547, 14014), (1666, 13013), (1859, 11662), (2002, 10829), (2366, 9163), (2431, 8918), (2618, 8281), (2873, 7546), (3094, 7007), (3718, 5831), (3773, 5746), (4459, 4862)]