21006848

素因数分解:

$2^9\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:568

約数の個数: 40

約数和(自身を含む): 42536340

約数和(自身を除く): 21529492

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 256, 356, 461, 512, 712, 922, 1424, 1844, 2848, 3688, 5696, 7376, 11392, 14752, 22784, 29504, 41029, 45568, 59008, 82058, 118016, 164116, 236032, 328232, 656464, 1312928, 2625856, 5251712, 10503424, 21006848]

約数ペア:

[(1, 21006848), (2, 10503424), (4, 5251712), (8, 2625856), (16, 1312928), (32, 656464), (64, 328232), (89, 236032), (128, 164116), (178, 118016), (256, 82058), (356, 59008), (461, 45568), (512, 41029), (712, 29504), (922, 22784), (1424, 14752), (1844, 11392), (2848, 7376), (3688, 5696)]