28132407

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 47616000

約数和(自身を除く): 19483593

約数列:

[1, 3, 9, 19, 27, 29, 31, 57, 61, 87, 93, 171, 183, 261, 279, 513, 549, 551, 589, 783, 837, 899, 1159, 1647, 1653, 1767, 1769, 1891, 2697, 3477, 4959, 5301, 5307, 5673, 8091, 10431, 14877, 15903, 15921, 17019, 17081, 24273, 31293, 33611, 35929, 47763, 51057, 51243, 54839, 100833, 107787, 153729, 164517, 302499, 323361, 461187, 493551, 907497, 970083, 1041941, 1480653, 3125823, 9377469, 28132407]

約数ペア:

[(1, 28132407), (3, 9377469), (9, 3125823), (19, 1480653), (27, 1041941), (29, 970083), (31, 907497), (57, 493551), (61, 461187), (87, 323361), (93, 302499), (171, 164517), (183, 153729), (261, 107787), (279, 100833), (513, 54839), (549, 51243), (551, 51057), (589, 47763), (783, 35929), (837, 33611), (899, 31293), (1159, 24273), (1647, 17081), (1653, 17019), (1767, 15921), (1769, 15903), (1891, 14877), (2697, 10431), (3477, 8091), (4959, 5673), (5301, 5307)]