21032944

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1459}}^1$

素因数の和:1537

約数の個数: 40

約数和(自身を含む): 43992720

約数和(自身を除く): 22959776

約数列:

[1, 2, 4, 8, 16, 17, 34, 53, 68, 106, 136, 212, 272, 424, 848, 901, 1459, 1802, 2918, 3604, 5836, 7208, 11672, 14416, 23344, 24803, 49606, 77327, 99212, 154654, 198424, 309308, 396848, 618616, 1237232, 1314559, 2629118, 5258236, 10516472, 21032944]

約数ペア:

[(1, 21032944), (2, 10516472), (4, 5258236), (8, 2629118), (16, 1314559), (17, 1237232), (34, 618616), (53, 396848), (68, 309308), (106, 198424), (136, 154654), (212, 99212), (272, 77327), (424, 49606), (848, 24803), (901, 23344), (1459, 14416), (1802, 11672), (2918, 7208), (3604, 5836)]