19645353

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 37547328

約数和(自身を除く): 17901975

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 83, 91, 117, 119, 153, 221, 249, 273, 289, 357, 581, 663, 747, 819, 867, 1071, 1079, 1411, 1547, 1743, 1989, 2023, 2601, 3237, 3757, 4233, 4641, 5229, 6069, 7553, 9711, 9877, 11271, 12699, 13923, 18207, 18343, 22659, 23987, 26299, 29631, 33813, 55029, 67977, 71961, 78897, 88893, 128401, 165087, 167909, 215883, 236691, 311831, 385203, 503727, 935493, 1155609, 1511181, 2182817, 2806479, 6548451, 19645353]

約数ペア:

[(1, 19645353), (3, 6548451), (7, 2806479), (9, 2182817), (13, 1511181), (17, 1155609), (21, 935493), (39, 503727), (51, 385203), (63, 311831), (83, 236691), (91, 215883), (117, 167909), (119, 165087), (153, 128401), (221, 88893), (249, 78897), (273, 71961), (289, 67977), (357, 55029), (581, 33813), (663, 29631), (747, 26299), (819, 23987), (867, 22659), (1071, 18343), (1079, 18207), (1411, 13923), (1547, 12699), (1743, 11271), (1989, 9877), (2023, 9711), (2601, 7553), (3237, 6069), (3757, 5229), (4233, 4641)]