21527784

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{8081}}^1$

素因数の和:8130

約数の個数: 48

約数和(自身を含む): 59887620

約数和(自身を除く): 38359836

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 8081, 16162, 24243, 32324, 48486, 64648, 72729, 96972, 145458, 193944, 290916, 298997, 581832, 597994, 896991, 1195988, 1793982, 2391976, 2690973, 3587964, 5381946, 7175928, 10763892, 21527784]

約数ペア:

[(1, 21527784), (2, 10763892), (3, 7175928), (4, 5381946), (6, 3587964), (8, 2690973), (9, 2391976), (12, 1793982), (18, 1195988), (24, 896991), (36, 597994), (37, 581832), (72, 298997), (74, 290916), (111, 193944), (148, 145458), (222, 96972), (296, 72729), (333, 64648), (444, 48486), (666, 32324), (888, 24243), (1332, 16162), (2664, 8081)]