21034856

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{401}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 40521600

約数和(自身を除く): 19486744

約数列:

[1, 2, 4, 8, 79, 83, 158, 166, 316, 332, 401, 632, 664, 802, 1604, 3208, 6557, 13114, 26228, 31679, 33283, 52456, 63358, 66566, 126716, 133132, 253432, 266264, 2629357, 5258714, 10517428, 21034856]

約数ペア:

[(1, 21034856), (2, 10517428), (4, 5258714), (8, 2629357), (79, 266264), (83, 253432), (158, 133132), (166, 126716), (316, 66566), (332, 63358), (401, 52456), (632, 33283), (664, 31679), (802, 26228), (1604, 13114), (3208, 6557)]