21905208

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:326

約数の個数: 128

約数和(自身を含む): 68040000

約数和(自身を除く): 46134792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 29, 36, 39, 52, 54, 58, 72, 78, 87, 104, 108, 116, 117, 156, 174, 216, 232, 234, 261, 269, 312, 348, 351, 377, 468, 522, 538, 696, 702, 754, 783, 807, 936, 1044, 1076, 1131, 1404, 1508, 1566, 1614, 2088, 2152, 2262, 2421, 2808, 3016, 3132, 3228, 3393, 3497, 4524, 4842, 6264, 6456, 6786, 6994, 7263, 7801, 9048, 9684, 10179, 10491, 13572, 13988, 14526, 15602, 19368, 20358, 20982, 23403, 27144, 27976, 29052, 31204, 31473, 40716, 41964, 46806, 58104, 62408, 62946, 70209, 81432, 83928, 93612, 94419, 101413, 125892, 140418, 187224, 188838, 202826, 210627, 251784, 280836, 304239, 377676, 405652, 421254, 561672, 608478, 755352, 811304, 842508, 912717, 1216956, 1685016, 1825434, 2433912, 2738151, 3650868, 5476302, 7301736, 10952604, 21905208]

約数ペア:

[(1, 21905208), (2, 10952604), (3, 7301736), (4, 5476302), (6, 3650868), (8, 2738151), (9, 2433912), (12, 1825434), (13, 1685016), (18, 1216956), (24, 912717), (26, 842508), (27, 811304), (29, 755352), (36, 608478), (39, 561672), (52, 421254), (54, 405652), (58, 377676), (72, 304239), (78, 280836), (87, 251784), (104, 210627), (108, 202826), (116, 188838), (117, 187224), (156, 140418), (174, 125892), (216, 101413), (232, 94419), (234, 93612), (261, 83928), (269, 81432), (312, 70209), (348, 62946), (351, 62408), (377, 58104), (468, 46806), (522, 41964), (538, 40716), (696, 31473), (702, 31204), (754, 29052), (783, 27976), (807, 27144), (936, 23403), (1044, 20982), (1076, 20358), (1131, 19368), (1404, 15602), (1508, 14526), (1566, 13988), (1614, 13572), (2088, 10491), (2152, 10179), (2262, 9684), (2421, 9048), (2808, 7801), (3016, 7263), (3132, 6994), (3228, 6786), (3393, 6456), (3497, 6264), (4524, 4842)]