21490924

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 51480576

約数和(自身を除く): 29989652

約数列:

[1, 2, 4, 7, 13, 14, 17, 23, 26, 28, 34, 46, 52, 68, 91, 92, 119, 151, 161, 182, 221, 238, 299, 302, 322, 364, 391, 442, 476, 598, 604, 644, 782, 884, 1057, 1196, 1547, 1564, 1963, 2093, 2114, 2567, 2737, 3094, 3473, 3926, 4186, 4228, 5083, 5134, 5474, 6188, 6946, 7852, 8372, 10166, 10268, 10948, 13741, 13892, 17969, 20332, 24311, 27482, 33371, 35581, 35938, 45149, 48622, 54964, 59041, 66742, 71162, 71876, 90298, 97244, 118082, 133484, 142324, 180596, 233597, 236164, 316043, 413287, 467194, 632086, 767533, 826574, 934388, 1264172, 1535066, 1653148, 3070132, 5372731, 10745462, 21490924]

約数ペア:

[(1, 21490924), (2, 10745462), (4, 5372731), (7, 3070132), (13, 1653148), (14, 1535066), (17, 1264172), (23, 934388), (26, 826574), (28, 767533), (34, 632086), (46, 467194), (52, 413287), (68, 316043), (91, 236164), (92, 233597), (119, 180596), (151, 142324), (161, 133484), (182, 118082), (221, 97244), (238, 90298), (299, 71876), (302, 71162), (322, 66742), (364, 59041), (391, 54964), (442, 48622), (476, 45149), (598, 35938), (604, 35581), (644, 33371), (782, 27482), (884, 24311), (1057, 20332), (1196, 17969), (1547, 13892), (1564, 13741), (1963, 10948), (2093, 10268), (2114, 10166), (2567, 8372), (2737, 7852), (3094, 6946), (3473, 6188), (3926, 5474), (4186, 5134), (4228, 5083)]