18209961

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 35481600

約数和(自身を除く): 17271639

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 57, 63, 77, 99, 133, 171, 189, 209, 231, 297, 399, 461, 513, 627, 693, 1197, 1383, 1463, 1881, 2079, 3227, 3591, 4149, 4389, 5071, 5643, 8759, 9681, 12447, 13167, 15213, 26277, 29043, 35497, 39501, 45639, 61313, 78831, 87129, 96349, 106491, 136917, 183939, 236493, 289047, 319473, 551817, 674443, 867141, 958419, 1655451, 2023329, 2601423, 6069987, 18209961]

約数ペア:

[(1, 18209961), (3, 6069987), (7, 2601423), (9, 2023329), (11, 1655451), (19, 958419), (21, 867141), (27, 674443), (33, 551817), (57, 319473), (63, 289047), (77, 236493), (99, 183939), (133, 136917), (171, 106491), (189, 96349), (209, 87129), (231, 78831), (297, 61313), (399, 45639), (461, 39501), (513, 35497), (627, 29043), (693, 26277), (1197, 15213), (1383, 13167), (1463, 12447), (1881, 9681), (2079, 8759), (3227, 5643), (3591, 5071), (4149, 4389)]