20163484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 20962916

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 89, 178, 209, 271, 356, 418, 542, 836, 979, 1084, 1691, 1958, 2981, 3382, 3916, 5149, 5962, 6764, 10298, 11924, 18601, 20596, 24119, 37202, 48238, 56639, 74404, 96476, 113278, 226556, 265309, 458261, 530618, 916522, 1061236, 1833044, 5040871, 10081742, 20163484]

約数ペア:

[(1, 20163484), (2, 10081742), (4, 5040871), (11, 1833044), (19, 1061236), (22, 916522), (38, 530618), (44, 458261), (76, 265309), (89, 226556), (178, 113278), (209, 96476), (271, 74404), (356, 56639), (418, 48238), (542, 37202), (836, 24119), (979, 20596), (1084, 18601), (1691, 11924), (1958, 10298), (2981, 6764), (3382, 5962), (3916, 5149)]