21997008

素因数分解:

$2^4\times 3^4\times {\mathrm{11}}^1\times {\mathrm{1543}}^1$

素因数の和:1574

約数の個数: 100

約数和(自身を含む): 69498528

約数和(自身を除く): 47501520

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 33, 36, 44, 48, 54, 66, 72, 81, 88, 99, 108, 132, 144, 162, 176, 198, 216, 264, 297, 324, 396, 432, 528, 594, 648, 792, 891, 1188, 1296, 1543, 1584, 1782, 2376, 3086, 3564, 4629, 4752, 6172, 7128, 9258, 12344, 13887, 14256, 16973, 18516, 24688, 27774, 33946, 37032, 41661, 50919, 55548, 67892, 74064, 83322, 101838, 111096, 124983, 135784, 152757, 166644, 203676, 222192, 249966, 271568, 305514, 333288, 407352, 458271, 499932, 611028, 666576, 814704, 916542, 999864, 1222056, 1374813, 1833084, 1999728, 2444112, 2749626, 3666168, 5499252, 7332336, 10998504, 21997008]

約数ペア:

[(1, 21997008), (2, 10998504), (3, 7332336), (4, 5499252), (6, 3666168), (8, 2749626), (9, 2444112), (11, 1999728), (12, 1833084), (16, 1374813), (18, 1222056), (22, 999864), (24, 916542), (27, 814704), (33, 666576), (36, 611028), (44, 499932), (48, 458271), (54, 407352), (66, 333288), (72, 305514), (81, 271568), (88, 249966), (99, 222192), (108, 203676), (132, 166644), (144, 152757), (162, 135784), (176, 124983), (198, 111096), (216, 101838), (264, 83322), (297, 74064), (324, 67892), (396, 55548), (432, 50919), (528, 41661), (594, 37032), (648, 33946), (792, 27774), (891, 24688), (1188, 18516), (1296, 16973), (1543, 14256), (1584, 13887), (1782, 12344), (2376, 9258), (3086, 7128), (3564, 6172), (4629, 4752)]