20988472

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:200

約数の個数: 64

約数和(自身を含む): 44241120

約数和(自身を除く): 23252648

約数列:

[1, 2, 4, 8, 17, 34, 37, 43, 68, 74, 86, 97, 136, 148, 172, 194, 296, 344, 388, 629, 731, 776, 1258, 1462, 1591, 1649, 2516, 2924, 3182, 3298, 3589, 4171, 5032, 5848, 6364, 6596, 7178, 8342, 12728, 13192, 14356, 16684, 27047, 28712, 33368, 54094, 61013, 70907, 108188, 122026, 141814, 154327, 216376, 244052, 283628, 308654, 488104, 567256, 617308, 1234616, 2623559, 5247118, 10494236, 20988472]

約数ペア:

[(1, 20988472), (2, 10494236), (4, 5247118), (8, 2623559), (17, 1234616), (34, 617308), (37, 567256), (43, 488104), (68, 308654), (74, 283628), (86, 244052), (97, 216376), (136, 154327), (148, 141814), (172, 122026), (194, 108188), (296, 70907), (344, 61013), (388, 54094), (629, 33368), (731, 28712), (776, 27047), (1258, 16684), (1462, 14356), (1591, 13192), (1649, 12728), (2516, 8342), (2924, 7178), (3182, 6596), (3298, 6364), (3589, 5848), (4171, 5032)]