21234564

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1$

素因数の和:214

約数の個数: 108

約数和(自身を含む): 61796644

約数和(自身を除く): 40562080

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 157, 204, 221, 234, 289, 306, 314, 442, 468, 471, 578, 612, 628, 663, 867, 884, 942, 1156, 1326, 1413, 1734, 1884, 1989, 2041, 2601, 2652, 2669, 2826, 3468, 3757, 3978, 4082, 5202, 5338, 5652, 6123, 7514, 7956, 8007, 8164, 10404, 10676, 11271, 12246, 15028, 16014, 18369, 22542, 24021, 24492, 32028, 33813, 34697, 36738, 45084, 45373, 48042, 67626, 69394, 73476, 90746, 96084, 104091, 135252, 136119, 138788, 181492, 208182, 272238, 312273, 408357, 416364, 544476, 589849, 624546, 816714, 1179698, 1249092, 1633428, 1769547, 2359396, 3539094, 5308641, 7078188, 10617282, 21234564]

約数ペア:

[(1, 21234564), (2, 10617282), (3, 7078188), (4, 5308641), (6, 3539094), (9, 2359396), (12, 1769547), (13, 1633428), (17, 1249092), (18, 1179698), (26, 816714), (34, 624546), (36, 589849), (39, 544476), (51, 416364), (52, 408357), (68, 312273), (78, 272238), (102, 208182), (117, 181492), (153, 138788), (156, 136119), (157, 135252), (204, 104091), (221, 96084), (234, 90746), (289, 73476), (306, 69394), (314, 67626), (442, 48042), (468, 45373), (471, 45084), (578, 36738), (612, 34697), (628, 33813), (663, 32028), (867, 24492), (884, 24021), (942, 22542), (1156, 18369), (1326, 16014), (1413, 15028), (1734, 12246), (1884, 11271), (1989, 10676), (2041, 10404), (2601, 8164), (2652, 8007), (2669, 7956), (2826, 7514), (3468, 6123), (3757, 5652), (3978, 5338), (4082, 5202)]