21638368

素因数分解:

$2^5\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:299

約数の個数: 48

約数和(自身を含む): 44195760

約数和(自身を除く): 22557392

約数列:

[1, 2, 4, 8, 16, 32, 59, 73, 118, 146, 157, 236, 292, 314, 472, 584, 628, 944, 1168, 1256, 1888, 2336, 2512, 4307, 5024, 8614, 9263, 11461, 17228, 18526, 22922, 34456, 37052, 45844, 68912, 74104, 91688, 137824, 148208, 183376, 296416, 366752, 676199, 1352398, 2704796, 5409592, 10819184, 21638368]

約数ペア:

[(1, 21638368), (2, 10819184), (4, 5409592), (8, 2704796), (16, 1352398), (32, 676199), (59, 366752), (73, 296416), (118, 183376), (146, 148208), (157, 137824), (236, 91688), (292, 74104), (314, 68912), (472, 45844), (584, 37052), (628, 34456), (944, 22922), (1168, 18526), (1256, 17228), (1888, 11461), (2336, 9263), (2512, 8614), (4307, 5024)]