21520674

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{197}}^1$

素因数の和:249

約数の個数: 96

約数和(自身を含む): 58354560

約数和(自身を除く): 36833886

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 27, 34, 42, 51, 54, 63, 102, 119, 126, 153, 189, 197, 238, 289, 306, 357, 378, 394, 459, 578, 591, 714, 867, 918, 1071, 1182, 1379, 1734, 1773, 2023, 2142, 2601, 2758, 3213, 3349, 3546, 4046, 4137, 5202, 5319, 6069, 6426, 6698, 7803, 8274, 10047, 10638, 12138, 12411, 15606, 18207, 20094, 23443, 24822, 30141, 36414, 37233, 46886, 54621, 56933, 60282, 70329, 74466, 90423, 109242, 113866, 140658, 170799, 180846, 210987, 341598, 398531, 421974, 512397, 632961, 797062, 1024794, 1195593, 1265922, 1537191, 2391186, 3074382, 3586779, 7173558, 10760337, 21520674]

約数ペア:

[(1, 21520674), (2, 10760337), (3, 7173558), (6, 3586779), (7, 3074382), (9, 2391186), (14, 1537191), (17, 1265922), (18, 1195593), (21, 1024794), (27, 797062), (34, 632961), (42, 512397), (51, 421974), (54, 398531), (63, 341598), (102, 210987), (119, 180846), (126, 170799), (153, 140658), (189, 113866), (197, 109242), (238, 90423), (289, 74466), (306, 70329), (357, 60282), (378, 56933), (394, 54621), (459, 46886), (578, 37233), (591, 36414), (714, 30141), (867, 24822), (918, 23443), (1071, 20094), (1182, 18207), (1379, 15606), (1734, 12411), (1773, 12138), (2023, 10638), (2142, 10047), (2601, 8274), (2758, 7803), (3213, 6698), (3349, 6426), (3546, 6069), (4046, 5319), (4137, 5202)]