21951256

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{739}}^1$

素因数の和:871

約数の個数: 32

約数和(自身を含む): 42624000

約数和(自身を除く): 20672744

約数列:

[1, 2, 4, 8, 47, 79, 94, 158, 188, 316, 376, 632, 739, 1478, 2956, 3713, 5912, 7426, 14852, 29704, 34733, 58381, 69466, 116762, 138932, 233524, 277864, 467048, 2743907, 5487814, 10975628, 21951256]

約数ペア:

[(1, 21951256), (2, 10975628), (4, 5487814), (8, 2743907), (47, 467048), (79, 277864), (94, 233524), (158, 138932), (188, 116762), (316, 69466), (376, 58381), (632, 34733), (739, 29704), (1478, 14852), (2956, 7426), (3713, 5912)]