21364984

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 41655600

約数和(自身を除く): 20290616

約数列:

[1, 2, 4, 8, 37, 74, 89, 148, 178, 296, 356, 712, 811, 1622, 3244, 3293, 6488, 6586, 13172, 26344, 30007, 60014, 72179, 120028, 144358, 240056, 288716, 577432, 2670623, 5341246, 10682492, 21364984]

約数ペア:

[(1, 21364984), (2, 10682492), (4, 5341246), (8, 2670623), (37, 577432), (74, 288716), (89, 240056), (148, 144358), (178, 120028), (296, 72179), (356, 60014), (712, 30007), (811, 26344), (1622, 13172), (3244, 6586), (3293, 6488)]