21539772

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 56821856

約数和(自身を除く): 35282084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 103, 111, 148, 157, 206, 222, 309, 314, 333, 412, 444, 471, 618, 628, 666, 927, 942, 1236, 1332, 1413, 1854, 1884, 2826, 3708, 3811, 5652, 5809, 7622, 11433, 11618, 15244, 16171, 17427, 22866, 23236, 32342, 34299, 34854, 45732, 48513, 52281, 64684, 68598, 69708, 97026, 104562, 137196, 145539, 194052, 209124, 291078, 582156, 598327, 1196654, 1794981, 2393308, 3589962, 5384943, 7179924, 10769886, 21539772]

約数ペア:

[(1, 21539772), (2, 10769886), (3, 7179924), (4, 5384943), (6, 3589962), (9, 2393308), (12, 1794981), (18, 1196654), (36, 598327), (37, 582156), (74, 291078), (103, 209124), (111, 194052), (148, 145539), (157, 137196), (206, 104562), (222, 97026), (309, 69708), (314, 68598), (333, 64684), (412, 52281), (444, 48513), (471, 45732), (618, 34854), (628, 34299), (666, 32342), (927, 23236), (942, 22866), (1236, 17427), (1332, 16171), (1413, 15244), (1854, 11618), (1884, 11433), (2826, 7622), (3708, 5809), (3811, 5652)]