21489248

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1489}}^1$

素因数の和:1551

約数の個数: 48

約数和(自身を含む): 47310480

約数和(自身を除く): 25821232

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 82, 88, 164, 176, 328, 352, 451, 656, 902, 1312, 1489, 1804, 2978, 3608, 5956, 7216, 11912, 14432, 16379, 23824, 32758, 47648, 61049, 65516, 122098, 131032, 244196, 262064, 488392, 524128, 671539, 976784, 1343078, 1953568, 2686156, 5372312, 10744624, 21489248]

約数ペア:

[(1, 21489248), (2, 10744624), (4, 5372312), (8, 2686156), (11, 1953568), (16, 1343078), (22, 976784), (32, 671539), (41, 524128), (44, 488392), (82, 262064), (88, 244196), (164, 131032), (176, 122098), (328, 65516), (352, 61049), (451, 47648), (656, 32758), (902, 23824), (1312, 16379), (1489, 14432), (1804, 11912), (2978, 7216), (3608, 5956)]