21038467492760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1\times {\mathrm{25282973}}^1$

素因数の和:25283348

約数の個数: 64

約数和(自身を含む): 48167099426880

約数和(自身を除く): 27128631934120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 293, 355, 568, 586, 710, 1172, 1420, 1465, 2344, 2840, 2930, 5860, 11720, 20803, 41606, 83212, 104015, 166424, 208030, 416060, 832120, 25282973, 50565946, 101131892, 126414865, 202263784, 252829730, 505659460, 1011318920, 1795091083, 3590182166, 7180364332, 7407911089, 8975455415, 14360728664, 14815822178, 17950910830, 29631644356, 35901821660, 37039555445, 59263288712, 71803643320, 74079110890, 148158221780, 296316443560, 525961687319, 1051923374638, 2103846749276, 2629808436595, 4207693498552, 5259616873190, 10519233746380, 21038467492760]

約数ペア:

[(1, 21038467492760), (2, 10519233746380), (4, 5259616873190), (5, 4207693498552), (8, 2629808436595), (10, 2103846749276), (20, 1051923374638), (40, 525961687319), (71, 296316443560), (142, 148158221780), (284, 74079110890), (293, 71803643320), (355, 59263288712), (568, 37039555445), (586, 35901821660), (710, 29631644356), (1172, 17950910830), (1420, 14815822178), (1465, 14360728664), (2344, 8975455415), (2840, 7407911089), (2930, 7180364332), (5860, 3590182166), (11720, 1795091083), (20803, 1011318920), (41606, 505659460), (83212, 252829730), (104015, 202263784), (166424, 126414865), (208030, 101131892), (416060, 50565946), (832120, 25282973)]