20804700189

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{19697}}^1$

素因数の和:19846

約数の個数: 64

約数和(自身を含む): 35263517184

約数和(自身を除く): 14458816995

約数列:

[1, 3, 7, 13, 21, 39, 53, 73, 91, 159, 219, 273, 371, 511, 689, 949, 1113, 1533, 2067, 2847, 3869, 4823, 6643, 11607, 14469, 19697, 19929, 27083, 50297, 59091, 81249, 137879, 150891, 256061, 352079, 413637, 768183, 1043941, 1056237, 1437881, 1792427, 3131823, 4313643, 5377281, 7307587, 10065167, 13571233, 18692453, 21922761, 30195501, 40713699, 56077359, 76207693, 94998631, 130847171, 228623079, 284995893, 392541513, 533453851, 990700009, 1600361553, 2972100027, 6934900063, 20804700189]

約数ペア:

[(1, 20804700189), (3, 6934900063), (7, 2972100027), (13, 1600361553), (21, 990700009), (39, 533453851), (53, 392541513), (73, 284995893), (91, 228623079), (159, 130847171), (219, 94998631), (273, 76207693), (371, 56077359), (511, 40713699), (689, 30195501), (949, 21922761), (1113, 18692453), (1533, 13571233), (2067, 10065167), (2847, 7307587), (3869, 5377281), (4823, 4313643), (6643, 3131823), (11607, 1792427), (14469, 1437881), (19697, 1056237), (19929, 1043941), (27083, 768183), (50297, 413637), (59091, 352079), (81249, 256061), (137879, 150891)]