21433952

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:511

約数の個数: 48

約数和(自身を含む): 44451792

約数和(自身を除く): 23017840

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 74, 86, 148, 172, 296, 344, 421, 592, 688, 842, 1184, 1376, 1591, 1684, 3182, 3368, 6364, 6736, 12728, 13472, 15577, 18103, 25456, 31154, 36206, 50912, 62308, 72412, 124616, 144824, 249232, 289648, 498464, 579296, 669811, 1339622, 2679244, 5358488, 10716976, 21433952]

約数ペア:

[(1, 21433952), (2, 10716976), (4, 5358488), (8, 2679244), (16, 1339622), (32, 669811), (37, 579296), (43, 498464), (74, 289648), (86, 249232), (148, 144824), (172, 124616), (296, 72412), (344, 62308), (421, 50912), (592, 36206), (688, 31154), (842, 25456), (1184, 18103), (1376, 15577), (1591, 13472), (1684, 12728), (3182, 6736), (3368, 6364)]