21433995

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:137

約数の個数: 96

約数和(自身を含む): 44478720

約数和(自身を除く): 23044725

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 43, 45, 53, 55, 57, 95, 99, 129, 159, 165, 171, 209, 215, 265, 285, 387, 473, 477, 495, 583, 627, 645, 795, 817, 855, 1007, 1045, 1419, 1749, 1881, 1935, 2279, 2365, 2385, 2451, 2915, 3021, 3135, 4085, 4257, 5035, 5247, 6837, 7095, 7353, 8745, 8987, 9063, 9405, 11077, 11395, 12255, 15105, 20511, 21285, 25069, 26235, 26961, 33231, 34185, 36765, 43301, 44935, 45315, 55385, 75207, 80883, 99693, 102555, 125345, 129903, 134805, 166155, 216505, 225621, 376035, 389709, 404415, 476311, 498465, 649515, 1128105, 1428933, 1948545, 2381555, 4286799, 7144665, 21433995]

約数ペア:

[(1, 21433995), (3, 7144665), (5, 4286799), (9, 2381555), (11, 1948545), (15, 1428933), (19, 1128105), (33, 649515), (43, 498465), (45, 476311), (53, 404415), (55, 389709), (57, 376035), (95, 225621), (99, 216505), (129, 166155), (159, 134805), (165, 129903), (171, 125345), (209, 102555), (215, 99693), (265, 80883), (285, 75207), (387, 55385), (473, 45315), (477, 44935), (495, 43301), (583, 36765), (627, 34185), (645, 33231), (795, 26961), (817, 26235), (855, 25069), (1007, 21285), (1045, 20511), (1419, 15105), (1749, 12255), (1881, 11395), (1935, 11077), (2279, 9405), (2365, 9063), (2385, 8987), (2451, 8745), (2915, 7353), (3021, 7095), (3135, 6837), (4085, 5247), (4257, 5035)]