18684828

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{463}}^1$

素因数の和:551

約数の個数: 72

約数和(自身を含む): 50668800

約数和(自身を除く): 31983972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 59, 76, 114, 118, 171, 177, 228, 236, 342, 354, 463, 531, 684, 708, 926, 1062, 1121, 1389, 1852, 2124, 2242, 2778, 3363, 4167, 4484, 5556, 6726, 8334, 8797, 10089, 13452, 16668, 17594, 20178, 26391, 27317, 35188, 40356, 52782, 54634, 79173, 81951, 105564, 109268, 158346, 163902, 245853, 316692, 327804, 491706, 519023, 983412, 1038046, 1557069, 2076092, 3114138, 4671207, 6228276, 9342414, 18684828]

約数ペア:

[(1, 18684828), (2, 9342414), (3, 6228276), (4, 4671207), (6, 3114138), (9, 2076092), (12, 1557069), (18, 1038046), (19, 983412), (36, 519023), (38, 491706), (57, 327804), (59, 316692), (76, 245853), (114, 163902), (118, 158346), (171, 109268), (177, 105564), (228, 81951), (236, 79173), (342, 54634), (354, 52782), (463, 40356), (531, 35188), (684, 27317), (708, 26391), (926, 20178), (1062, 17594), (1121, 16668), (1389, 13452), (1852, 10089), (2124, 8797), (2242, 8334), (2778, 6726), (3363, 5556), (4167, 4484)]