19927732

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:253

約数の個数: 48

約数和(自身を含む): 40582080

約数和(自身を除く): 20654348

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 197, 209, 242, 394, 418, 484, 788, 836, 1331, 2167, 2299, 2662, 3743, 4334, 4598, 5324, 7486, 8668, 9196, 14972, 23837, 25289, 41173, 47674, 50578, 82346, 95348, 101156, 164692, 262207, 452903, 524414, 905806, 1048828, 1811612, 4981933, 9963866, 19927732]

約数ペア:

[(1, 19927732), (2, 9963866), (4, 4981933), (11, 1811612), (19, 1048828), (22, 905806), (38, 524414), (44, 452903), (76, 262207), (121, 164692), (197, 101156), (209, 95348), (242, 82346), (394, 50578), (418, 47674), (484, 41173), (788, 25289), (836, 23837), (1331, 14972), (2167, 9196), (2299, 8668), (2662, 7486), (3743, 5324), (4334, 4598)]