21707532

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 70447104

約数和(自身を除く): 48739572

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 41, 42, 44, 63, 66, 77, 82, 84, 99, 123, 126, 132, 154, 164, 191, 198, 231, 246, 252, 287, 308, 369, 382, 396, 451, 462, 492, 573, 574, 693, 738, 764, 861, 902, 924, 1146, 1148, 1337, 1353, 1386, 1476, 1719, 1722, 1804, 2101, 2292, 2583, 2674, 2706, 2772, 3157, 3438, 3444, 4011, 4059, 4202, 5166, 5348, 5412, 6303, 6314, 6876, 7831, 8022, 8118, 8404, 9471, 10332, 12033, 12606, 12628, 14707, 15662, 16044, 16236, 18909, 18942, 23493, 24066, 25212, 28413, 29414, 31324, 37818, 37884, 44121, 46986, 48132, 54817, 56826, 58828, 70479, 75636, 86141, 88242, 93972, 109634, 113652, 132363, 140958, 164451, 172282, 176484, 219268, 258423, 264726, 281916, 328902, 344564, 493353, 516846, 529452, 602987, 657804, 775269, 986706, 1033692, 1205974, 1550538, 1808961, 1973412, 2411948, 3101076, 3617922, 5426883, 7235844, 10853766, 21707532]

約数ペア:

[(1, 21707532), (2, 10853766), (3, 7235844), (4, 5426883), (6, 3617922), (7, 3101076), (9, 2411948), (11, 1973412), (12, 1808961), (14, 1550538), (18, 1205974), (21, 1033692), (22, 986706), (28, 775269), (33, 657804), (36, 602987), (41, 529452), (42, 516846), (44, 493353), (63, 344564), (66, 328902), (77, 281916), (82, 264726), (84, 258423), (99, 219268), (123, 176484), (126, 172282), (132, 164451), (154, 140958), (164, 132363), (191, 113652), (198, 109634), (231, 93972), (246, 88242), (252, 86141), (287, 75636), (308, 70479), (369, 58828), (382, 56826), (396, 54817), (451, 48132), (462, 46986), (492, 44121), (573, 37884), (574, 37818), (693, 31324), (738, 29414), (764, 28413), (861, 25212), (902, 24066), (924, 23493), (1146, 18942), (1148, 18909), (1337, 16236), (1353, 16044), (1386, 15662), (1476, 14707), (1719, 12628), (1722, 12606), (1804, 12033), (2101, 10332), (2292, 9471), (2583, 8404), (2674, 8118), (2706, 8022), (2772, 7831), (3157, 6876), (3438, 6314), (3444, 6303), (4011, 5412), (4059, 5348), (4202, 5166)]