21431584

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{787}}^1$

素因数の和:857

約数の個数: 48

約数和(自身を含む): 45275328

約数和(自身を除く): 23843744

約数列:

[1, 2, 4, 8, 16, 23, 32, 37, 46, 74, 92, 148, 184, 296, 368, 592, 736, 787, 851, 1184, 1574, 1702, 3148, 3404, 6296, 6808, 12592, 13616, 18101, 25184, 27232, 29119, 36202, 58238, 72404, 116476, 144808, 232952, 289616, 465904, 579232, 669737, 931808, 1339474, 2678948, 5357896, 10715792, 21431584]

約数ペア:

[(1, 21431584), (2, 10715792), (4, 5357896), (8, 2678948), (16, 1339474), (23, 931808), (32, 669737), (37, 579232), (46, 465904), (74, 289616), (92, 232952), (148, 144808), (184, 116476), (296, 72404), (368, 58238), (592, 36202), (736, 29119), (787, 27232), (851, 25184), (1184, 18101), (1574, 13616), (1702, 12592), (3148, 6808), (3404, 6296)]