21436604

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 23270212

約数列:

[1, 2, 4, 7, 14, 28, 41, 71, 82, 142, 164, 263, 284, 287, 497, 526, 574, 994, 1052, 1148, 1841, 1988, 2911, 3682, 5822, 7364, 10783, 11644, 18673, 20377, 21566, 37346, 40754, 43132, 74692, 75481, 81508, 130711, 150962, 261422, 301924, 522844, 765593, 1531186, 3062372, 5359151, 10718302, 21436604]

約数ペア:

[(1, 21436604), (2, 10718302), (4, 5359151), (7, 3062372), (14, 1531186), (28, 765593), (41, 522844), (71, 301924), (82, 261422), (142, 150962), (164, 130711), (263, 81508), (284, 75481), (287, 74692), (497, 43132), (526, 40754), (574, 37346), (994, 21566), (1052, 20377), (1148, 18673), (1841, 11644), (1988, 10783), (2911, 7364), (3682, 5822)]