21774780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{883}}^1$

素因数の和:1035

約数の個数: 72

約数和(自身を含む): 66607632

約数和(自身を除く): 44832852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 137, 180, 274, 411, 548, 685, 822, 883, 1233, 1370, 1644, 1766, 2055, 2466, 2649, 2740, 3532, 4110, 4415, 4932, 5298, 6165, 7947, 8220, 8830, 10596, 12330, 13245, 15894, 17660, 24660, 26490, 31788, 39735, 52980, 79470, 120971, 158940, 241942, 362913, 483884, 604855, 725826, 1088739, 1209710, 1451652, 1814565, 2177478, 2419420, 3629130, 4354956, 5443695, 7258260, 10887390, 21774780]

約数ペア:

[(1, 21774780), (2, 10887390), (3, 7258260), (4, 5443695), (5, 4354956), (6, 3629130), (9, 2419420), (10, 2177478), (12, 1814565), (15, 1451652), (18, 1209710), (20, 1088739), (30, 725826), (36, 604855), (45, 483884), (60, 362913), (90, 241942), (137, 158940), (180, 120971), (274, 79470), (411, 52980), (548, 39735), (685, 31788), (822, 26490), (883, 24660), (1233, 17660), (1370, 15894), (1644, 13245), (1766, 12330), (2055, 10596), (2466, 8830), (2649, 8220), (2740, 7947), (3532, 6165), (4110, 5298), (4415, 4932)]