21579136

素因数分解:

$2^7\times {\mathrm{19}}^2\times {\mathrm{467}}^1$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 45468540

約数和(自身を除く): 23889404

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 361, 467, 608, 722, 934, 1216, 1444, 1868, 2432, 2888, 3736, 5776, 7472, 8873, 11552, 14944, 17746, 23104, 29888, 35492, 46208, 59776, 70984, 141968, 168587, 283936, 337174, 567872, 674348, 1135744, 1348696, 2697392, 5394784, 10789568, 21579136]

約数ペア:

[(1, 21579136), (2, 10789568), (4, 5394784), (8, 2697392), (16, 1348696), (19, 1135744), (32, 674348), (38, 567872), (64, 337174), (76, 283936), (128, 168587), (152, 141968), (304, 70984), (361, 59776), (467, 46208), (608, 35492), (722, 29888), (934, 23104), (1216, 17746), (1444, 14944), (1868, 11552), (2432, 8873), (2888, 7472), (3736, 5776)]