21989330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1069}}^1$

素因数の和:1115

約数の個数: 48

約数和(自身を含む): 46108440

約数和(自身を除く): 24119110

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 121, 170, 187, 242, 374, 605, 935, 1069, 1210, 1870, 2057, 2138, 4114, 5345, 10285, 10690, 11759, 18173, 20570, 23518, 36346, 58795, 90865, 117590, 129349, 181730, 199903, 258698, 399806, 646745, 999515, 1293490, 1999030, 2198933, 4397866, 10994665, 21989330]

約数ペア:

[(1, 21989330), (2, 10994665), (5, 4397866), (10, 2198933), (11, 1999030), (17, 1293490), (22, 999515), (34, 646745), (55, 399806), (85, 258698), (110, 199903), (121, 181730), (170, 129349), (187, 117590), (242, 90865), (374, 58795), (605, 36346), (935, 23518), (1069, 20570), (1210, 18173), (1870, 11759), (2057, 10690), (2138, 10285), (4114, 5345)]