21397302

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{229}}^1$

素因数の和:445

約数の個数: 48

約数和(自身を含む): 48438000

約数和(自身を除く): 27040698

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 179, 229, 261, 358, 458, 522, 537, 687, 1074, 1374, 1611, 2061, 3222, 4122, 5191, 6641, 10382, 13282, 15573, 19923, 31146, 39846, 40991, 46719, 59769, 81982, 93438, 119538, 122973, 245946, 368919, 737838, 1188739, 2377478, 3566217, 7132434, 10698651, 21397302]

約数ペア:

[(1, 21397302), (2, 10698651), (3, 7132434), (6, 3566217), (9, 2377478), (18, 1188739), (29, 737838), (58, 368919), (87, 245946), (174, 122973), (179, 119538), (229, 93438), (261, 81982), (358, 59769), (458, 46719), (522, 40991), (537, 39846), (687, 31146), (1074, 19923), (1374, 15573), (1611, 13282), (2061, 10382), (3222, 6641), (4122, 5191)]