21879488

素因数分解:

$2^6\times {\mathrm{19}}^2\times {\mathrm{947}}^1$

素因数の和:997

約数の個数: 42

約数和(自身を含む): 45870876

約数和(自身を除く): 23991388

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 361, 608, 722, 947, 1216, 1444, 1894, 2888, 3788, 5776, 7576, 11552, 15152, 17993, 23104, 30304, 35986, 60608, 71972, 143944, 287888, 341867, 575776, 683734, 1151552, 1367468, 2734936, 5469872, 10939744, 21879488]

約数ペア:

[(1, 21879488), (2, 10939744), (4, 5469872), (8, 2734936), (16, 1367468), (19, 1151552), (32, 683734), (38, 575776), (64, 341867), (76, 287888), (152, 143944), (304, 71972), (361, 60608), (608, 35986), (722, 30304), (947, 23104), (1216, 17993), (1444, 15152), (1894, 11552), (2888, 7576), (3788, 5776)]