20921724448

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{513593}}^1$

素因数の和:513689

約数の個数: 48

約数和(自身を含む): 44004733920

約数和(自身を除く): 23083009472

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 67, 76, 134, 152, 268, 304, 536, 608, 1072, 1273, 2144, 2546, 5092, 10184, 20368, 40736, 513593, 1027186, 2054372, 4108744, 8217488, 9758267, 16434976, 19516534, 34410731, 39033068, 68821462, 78066136, 137642924, 156132272, 275285848, 312264544, 550571696, 653803889, 1101143392, 1307607778, 2615215556, 5230431112, 10460862224, 20921724448]

約数ペア:

[(1, 20921724448), (2, 10460862224), (4, 5230431112), (8, 2615215556), (16, 1307607778), (19, 1101143392), (32, 653803889), (38, 550571696), (67, 312264544), (76, 275285848), (134, 156132272), (152, 137642924), (268, 78066136), (304, 68821462), (536, 39033068), (608, 34410731), (1072, 19516534), (1273, 16434976), (2144, 9758267), (2546, 8217488), (5092, 4108744), (10184, 2054372), (20368, 1027186), (40736, 513593)]