19461668

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 18640732

約数列:

[1, 2, 4, 17, 29, 34, 58, 68, 71, 116, 139, 142, 278, 284, 493, 556, 986, 1207, 1972, 2059, 2363, 2414, 4031, 4118, 4726, 4828, 8062, 8236, 9452, 9869, 16124, 19738, 35003, 39476, 68527, 70006, 137054, 140012, 167773, 274108, 286201, 335546, 572402, 671092, 1144804, 4865417, 9730834, 19461668]

約数ペア:

[(1, 19461668), (2, 9730834), (4, 4865417), (17, 1144804), (29, 671092), (34, 572402), (58, 335546), (68, 286201), (71, 274108), (116, 167773), (139, 140012), (142, 137054), (278, 70006), (284, 68527), (493, 39476), (556, 35003), (986, 19738), (1207, 16124), (1972, 9869), (2059, 9452), (2363, 8236), (2414, 8062), (4031, 4828), (4118, 4726)]