18728072

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 42163200

約数和(自身を除く): 23435128

約数列:

[1, 2, 4, 8, 11, 19, 22, 23, 38, 44, 46, 76, 88, 92, 152, 184, 209, 253, 418, 437, 487, 506, 836, 874, 974, 1012, 1672, 1748, 1948, 2024, 3496, 3896, 4807, 5357, 9253, 9614, 10714, 11201, 18506, 19228, 21428, 22402, 37012, 38456, 42856, 44804, 74024, 89608, 101783, 123211, 203566, 212819, 246422, 407132, 425638, 492844, 814264, 851276, 985688, 1702552, 2341009, 4682018, 9364036, 18728072]

約数ペア:

[(1, 18728072), (2, 9364036), (4, 4682018), (8, 2341009), (11, 1702552), (19, 985688), (22, 851276), (23, 814264), (38, 492844), (44, 425638), (46, 407132), (76, 246422), (88, 212819), (92, 203566), (152, 123211), (184, 101783), (209, 89608), (253, 74024), (418, 44804), (437, 42856), (487, 38456), (506, 37012), (836, 22402), (874, 21428), (974, 19228), (1012, 18506), (1672, 11201), (1748, 10714), (1948, 9614), (2024, 9253), (3496, 5357), (3896, 4807)]