19923704

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 42336000

約数和(自身を除く): 22412296

約数列:

[1, 2, 4, 8, 19, 23, 38, 41, 46, 76, 82, 92, 139, 152, 164, 184, 278, 328, 437, 556, 779, 874, 943, 1112, 1558, 1748, 1886, 2641, 3116, 3197, 3496, 3772, 5282, 5699, 6232, 6394, 7544, 10564, 11398, 12788, 17917, 21128, 22796, 25576, 35834, 45592, 60743, 71668, 108281, 121486, 131077, 143336, 216562, 242972, 262154, 433124, 485944, 524308, 866248, 1048616, 2490463, 4980926, 9961852, 19923704]

約数ペア:

[(1, 19923704), (2, 9961852), (4, 4980926), (8, 2490463), (19, 1048616), (23, 866248), (38, 524308), (41, 485944), (46, 433124), (76, 262154), (82, 242972), (92, 216562), (139, 143336), (152, 131077), (164, 121486), (184, 108281), (278, 71668), (328, 60743), (437, 45592), (556, 35834), (779, 25576), (874, 22796), (943, 21128), (1112, 17917), (1558, 12788), (1748, 11398), (1886, 10564), (2641, 7544), (3116, 6394), (3197, 6232), (3496, 5699), (3772, 5282)]