18928316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 37594368

約数和(自身を除く): 18666052

約数列:

[1, 2, 4, 11, 22, 44, 71, 73, 83, 142, 146, 166, 284, 292, 332, 781, 803, 913, 1562, 1606, 1826, 3124, 3212, 3652, 5183, 5893, 6059, 10366, 11786, 12118, 20732, 23572, 24236, 57013, 64823, 66649, 114026, 129646, 133298, 228052, 259292, 266596, 430189, 860378, 1720756, 4732079, 9464158, 18928316]

約数ペア:

[(1, 18928316), (2, 9464158), (4, 4732079), (11, 1720756), (22, 860378), (44, 430189), (71, 266596), (73, 259292), (83, 228052), (142, 133298), (146, 129646), (166, 114026), (284, 66649), (292, 64823), (332, 57013), (781, 24236), (803, 23572), (913, 20732), (1562, 12118), (1606, 11786), (1826, 10366), (3124, 6059), (3212, 5893), (3652, 5183)]