19613529

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 35078400

約数和(自身を除く): 15464871

約数列:

[1, 3, 9, 13, 17, 19, 27, 39, 51, 57, 117, 153, 171, 173, 221, 247, 323, 351, 459, 513, 519, 663, 741, 969, 1557, 1989, 2223, 2249, 2907, 2941, 3287, 4199, 4671, 5967, 6669, 6747, 8721, 8823, 9861, 12597, 20241, 26469, 29583, 37791, 38233, 42731, 55879, 60723, 79407, 88749, 113373, 114699, 128193, 167637, 344097, 384579, 502911, 726427, 1032291, 1153737, 1508733, 2179281, 6537843, 19613529]

約数ペア:

[(1, 19613529), (3, 6537843), (9, 2179281), (13, 1508733), (17, 1153737), (19, 1032291), (27, 726427), (39, 502911), (51, 384579), (57, 344097), (117, 167637), (153, 128193), (171, 114699), (173, 113373), (221, 88749), (247, 79407), (323, 60723), (351, 55879), (459, 42731), (513, 38233), (519, 37791), (663, 29583), (741, 26469), (969, 20241), (1557, 12597), (1989, 9861), (2223, 8823), (2249, 8721), (2907, 6747), (2941, 6669), (3287, 5967), (4199, 4671)]