21767746

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 44706816

約数和(自身を除く): 22939070

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 83, 91, 131, 143, 154, 166, 182, 262, 286, 581, 913, 917, 1001, 1079, 1162, 1441, 1703, 1826, 1834, 2002, 2158, 2882, 3406, 6391, 7553, 10087, 10873, 11869, 11921, 12782, 15106, 18733, 20174, 21746, 23738, 23842, 37466, 76111, 83083, 119603, 131131, 141349, 152222, 166166, 239206, 262262, 282698, 837221, 989443, 1554839, 1674442, 1978886, 3109678, 10883873, 21767746]

約数ペア:

[(1, 21767746), (2, 10883873), (7, 3109678), (11, 1978886), (13, 1674442), (14, 1554839), (22, 989443), (26, 837221), (77, 282698), (83, 262262), (91, 239206), (131, 166166), (143, 152222), (154, 141349), (166, 131131), (182, 119603), (262, 83083), (286, 76111), (581, 37466), (913, 23842), (917, 23738), (1001, 21746), (1079, 20174), (1162, 18733), (1441, 15106), (1703, 12782), (1826, 11921), (1834, 11869), (2002, 10873), (2158, 10087), (2882, 7553), (3406, 6391)]