20921292

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1361}}^1$

素因数の和:1439

約数の個数: 72

約数和(自身を含む): 61475232

約数和(自身を除く): 40553940

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 61, 63, 84, 122, 126, 183, 244, 252, 366, 427, 549, 732, 854, 1098, 1281, 1361, 1708, 2196, 2562, 2722, 3843, 4083, 5124, 5444, 7686, 8166, 9527, 12249, 15372, 16332, 19054, 24498, 28581, 38108, 48996, 57162, 83021, 85743, 114324, 166042, 171486, 249063, 332084, 342972, 498126, 581147, 747189, 996252, 1162294, 1494378, 1743441, 2324588, 2988756, 3486882, 5230323, 6973764, 10460646, 20921292]

約数ペア:

[(1, 20921292), (2, 10460646), (3, 6973764), (4, 5230323), (6, 3486882), (7, 2988756), (9, 2324588), (12, 1743441), (14, 1494378), (18, 1162294), (21, 996252), (28, 747189), (36, 581147), (42, 498126), (61, 342972), (63, 332084), (84, 249063), (122, 171486), (126, 166042), (183, 114324), (244, 85743), (252, 83021), (366, 57162), (427, 48996), (549, 38108), (732, 28581), (854, 24498), (1098, 19054), (1281, 16332), (1361, 15372), (1708, 12249), (2196, 9527), (2562, 8166), (2722, 7686), (3843, 5444), (4083, 5124)]