21000201651

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2741}}^1\times {\mathrm{5953}}^1$

素因数の和:8724

約数の個数: 48

約数和(自身を含む): 35655695712

約数和(自身を除く): 14655494061

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 2741, 5953, 8223, 17859, 24669, 30151, 35633, 53577, 65483, 77389, 90453, 106899, 196449, 232167, 271359, 320697, 391963, 589347, 696501, 851279, 1175889, 2553837, 3527667, 7661511, 16317173, 48951519, 146854557, 179488903, 212123249, 538466709, 636369747, 1615400127, 1909109241, 2333355739, 7000067217, 21000201651]

約数ペア:

[(1, 21000201651), (3, 7000067217), (9, 2333355739), (11, 1909109241), (13, 1615400127), (33, 636369747), (39, 538466709), (99, 212123249), (117, 179488903), (143, 146854557), (429, 48951519), (1287, 16317173), (2741, 7661511), (5953, 3527667), (8223, 2553837), (17859, 1175889), (24669, 851279), (30151, 696501), (35633, 589347), (53577, 391963), (65483, 320697), (77389, 271359), (90453, 232167), (106899, 196449)]