21500032

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 45777600

約数和(自身を除く): 24277568

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 67, 92, 109, 128, 134, 184, 218, 268, 368, 436, 536, 736, 872, 1072, 1472, 1541, 1744, 2144, 2507, 2944, 3082, 3488, 4288, 5014, 6164, 6976, 7303, 8576, 10028, 12328, 13952, 14606, 20056, 24656, 29212, 40112, 49312, 58424, 80224, 98624, 116848, 160448, 167969, 197248, 233696, 320896, 335938, 467392, 671876, 934784, 1343752, 2687504, 5375008, 10750016, 21500032]

約数ペア:

[(1, 21500032), (2, 10750016), (4, 5375008), (8, 2687504), (16, 1343752), (23, 934784), (32, 671876), (46, 467392), (64, 335938), (67, 320896), (92, 233696), (109, 197248), (128, 167969), (134, 160448), (184, 116848), (218, 98624), (268, 80224), (368, 58424), (436, 49312), (536, 40112), (736, 29212), (872, 24656), (1072, 20056), (1472, 14606), (1541, 13952), (1744, 12328), (2144, 10028), (2507, 8576), (2944, 7303), (3082, 6976), (3488, 6164), (4288, 5014)]