19728104

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 42517440

約数和(自身を除く): 22789336

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 73, 74, 83, 88, 146, 148, 166, 292, 296, 332, 407, 584, 664, 803, 814, 913, 1606, 1628, 1826, 2701, 3071, 3212, 3256, 3652, 5402, 6059, 6142, 6424, 7304, 10804, 12118, 12284, 21608, 24236, 24568, 29711, 33781, 48472, 59422, 66649, 67562, 118844, 133298, 135124, 224183, 237688, 266596, 270248, 448366, 533192, 896732, 1793464, 2466013, 4932026, 9864052, 19728104]

約数ペア:

[(1, 19728104), (2, 9864052), (4, 4932026), (8, 2466013), (11, 1793464), (22, 896732), (37, 533192), (44, 448366), (73, 270248), (74, 266596), (83, 237688), (88, 224183), (146, 135124), (148, 133298), (166, 118844), (292, 67562), (296, 66649), (332, 59422), (407, 48472), (584, 33781), (664, 29711), (803, 24568), (814, 24236), (913, 21608), (1606, 12284), (1628, 12118), (1826, 10804), (2701, 7304), (3071, 6424), (3212, 6142), (3256, 6059), (3652, 5402)]