21530486874

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1\times {\mathrm{12421}}^1$

素因数の和:12823

約数の個数: 64

約数和(自身を含む): 47180544768

約数和(自身を除く): 25650057894

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 313, 426, 626, 923, 939, 1846, 1878, 2769, 4069, 5538, 8138, 12207, 12421, 22223, 24414, 24842, 37263, 44446, 66669, 74526, 133338, 161473, 288899, 322946, 484419, 577798, 866697, 881891, 968838, 1733394, 1763782, 2645673, 3887773, 5291346, 7775546, 11464583, 11663319, 22929166, 23326638, 34393749, 50541049, 68787498, 101082098, 151623147, 276031883, 303246294, 552063766, 828095649, 1656191298, 3588414479, 7176828958, 10765243437, 21530486874]

約数ペア:

[(1, 21530486874), (2, 10765243437), (3, 7176828958), (6, 3588414479), (13, 1656191298), (26, 828095649), (39, 552063766), (71, 303246294), (78, 276031883), (142, 151623147), (213, 101082098), (313, 68787498), (426, 50541049), (626, 34393749), (923, 23326638), (939, 22929166), (1846, 11663319), (1878, 11464583), (2769, 7775546), (4069, 5291346), (5538, 3887773), (8138, 2645673), (12207, 1763782), (12421, 1733394), (22223, 968838), (24414, 881891), (24842, 866697), (37263, 577798), (44446, 484419), (66669, 322946), (74526, 288899), (133338, 161473)]