20457718

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:396

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13756682

約数列:

[1, 2, 19, 23, 38, 46, 89, 178, 263, 437, 526, 874, 1691, 2047, 3382, 4094, 4997, 6049, 9994, 12098, 23407, 38893, 46814, 77786, 114931, 229862, 444733, 538361, 889466, 1076722, 10228859, 20457718]

約数ペア:

[(1, 20457718), (2, 10228859), (19, 1076722), (23, 889466), (38, 538361), (46, 444733), (89, 229862), (178, 114931), (263, 77786), (437, 46814), (526, 38893), (874, 23407), (1691, 12098), (2047, 9994), (3382, 6049), (4094, 4997)]