20674346

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 41990400

約数和(自身を除く): 21316054

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 53, 77, 106, 119, 149, 154, 187, 238, 298, 371, 374, 583, 742, 901, 1043, 1166, 1309, 1639, 1802, 2086, 2533, 2618, 3278, 4081, 5066, 6307, 7897, 8162, 9911, 11473, 12614, 15794, 17731, 19822, 22946, 27863, 35462, 55279, 55726, 69377, 86867, 110558, 134249, 138754, 173734, 195041, 268498, 390082, 608069, 939743, 1216138, 1476739, 1879486, 2953478, 10337173, 20674346]

約数ペア:

[(1, 20674346), (2, 10337173), (7, 2953478), (11, 1879486), (14, 1476739), (17, 1216138), (22, 939743), (34, 608069), (53, 390082), (77, 268498), (106, 195041), (119, 173734), (149, 138754), (154, 134249), (187, 110558), (238, 86867), (298, 69377), (371, 55726), (374, 55279), (583, 35462), (742, 27863), (901, 22946), (1043, 19822), (1166, 17731), (1309, 15794), (1639, 12614), (1802, 11473), (2086, 9911), (2533, 8162), (2618, 7897), (3278, 6307), (4081, 5066)]