21166938

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{313}}^1$

素因数の和:368

約数の個数: 72

約数和(自身を含む): 52633308

約数和(自身を除く): 31466370

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 289, 306, 313, 442, 578, 626, 663, 867, 939, 1326, 1734, 1878, 1989, 2601, 2817, 3757, 3978, 4069, 5202, 5321, 5634, 7514, 8138, 10642, 11271, 12207, 15963, 22542, 24414, 31926, 33813, 36621, 47889, 67626, 69173, 73242, 90457, 95778, 138346, 180914, 207519, 271371, 415038, 542742, 622557, 814113, 1175941, 1245114, 1628226, 2351882, 3527823, 7055646, 10583469, 21166938]

約数ペア:

[(1, 21166938), (2, 10583469), (3, 7055646), (6, 3527823), (9, 2351882), (13, 1628226), (17, 1245114), (18, 1175941), (26, 814113), (34, 622557), (39, 542742), (51, 415038), (78, 271371), (102, 207519), (117, 180914), (153, 138346), (221, 95778), (234, 90457), (289, 73242), (306, 69173), (313, 67626), (442, 47889), (578, 36621), (626, 33813), (663, 31926), (867, 24414), (939, 22542), (1326, 15963), (1734, 12207), (1878, 11271), (1989, 10642), (2601, 8138), (2817, 7514), (3757, 5634), (3978, 5321), (4069, 5202)]