21997584

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 120

約数和(自身を含む): 71314880

約数和(自身を除く): 49317296

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 139, 144, 157, 168, 252, 278, 314, 336, 417, 471, 504, 556, 628, 834, 942, 973, 1008, 1099, 1112, 1251, 1256, 1413, 1668, 1884, 1946, 2198, 2224, 2502, 2512, 2826, 2919, 3297, 3336, 3768, 3892, 4396, 5004, 5652, 5838, 6594, 6672, 7536, 7784, 8757, 8792, 9891, 10008, 11304, 11676, 13188, 15568, 17514, 17584, 19782, 20016, 21823, 22608, 23352, 26376, 35028, 39564, 43646, 46704, 52752, 65469, 70056, 79128, 87292, 130938, 140112, 152761, 158256, 174584, 196407, 261876, 305522, 349168, 392814, 458283, 523752, 611044, 785628, 916566, 1047504, 1222088, 1374849, 1571256, 1833132, 2444176, 2749698, 3142512, 3666264, 5499396, 7332528, 10998792, 21997584]

約数ペア:

[(1, 21997584), (2, 10998792), (3, 7332528), (4, 5499396), (6, 3666264), (7, 3142512), (8, 2749698), (9, 2444176), (12, 1833132), (14, 1571256), (16, 1374849), (18, 1222088), (21, 1047504), (24, 916566), (28, 785628), (36, 611044), (42, 523752), (48, 458283), (56, 392814), (63, 349168), (72, 305522), (84, 261876), (112, 196407), (126, 174584), (139, 158256), (144, 152761), (157, 140112), (168, 130938), (252, 87292), (278, 79128), (314, 70056), (336, 65469), (417, 52752), (471, 46704), (504, 43646), (556, 39564), (628, 35028), (834, 26376), (942, 23352), (973, 22608), (1008, 21823), (1099, 20016), (1112, 19782), (1251, 17584), (1256, 17514), (1413, 15568), (1668, 13188), (1884, 11676), (1946, 11304), (2198, 10008), (2224, 9891), (2502, 8792), (2512, 8757), (2826, 7784), (2919, 7536), (3297, 6672), (3336, 6594), (3768, 5838), (3892, 5652), (4396, 5004)]