20916392

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 48107520

約数和(自身を除く): 27191128

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 127, 136, 173, 238, 254, 346, 476, 508, 692, 889, 952, 1016, 1211, 1384, 1778, 2159, 2422, 2941, 3556, 4318, 4844, 5882, 7112, 8636, 9688, 11764, 15113, 17272, 20587, 21971, 23528, 30226, 41174, 43942, 60452, 82348, 87884, 120904, 153797, 164696, 175768, 307594, 373507, 615188, 747014, 1230376, 1494028, 2614549, 2988056, 5229098, 10458196, 20916392]

約数ペア:

[(1, 20916392), (2, 10458196), (4, 5229098), (7, 2988056), (8, 2614549), (14, 1494028), (17, 1230376), (28, 747014), (34, 615188), (56, 373507), (68, 307594), (119, 175768), (127, 164696), (136, 153797), (173, 120904), (238, 87884), (254, 82348), (346, 60452), (476, 43942), (508, 41174), (692, 30226), (889, 23528), (952, 21971), (1016, 20587), (1211, 17272), (1384, 15113), (1778, 11764), (2159, 9688), (2422, 8636), (2941, 7112), (3556, 5882), (4318, 4844)]