20493772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 41489280

約数和(自身を除く): 20995508

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 97, 194, 221, 239, 388, 442, 478, 884, 956, 1261, 1649, 2522, 3107, 3298, 4063, 5044, 6214, 6596, 8126, 12428, 16252, 21437, 23183, 42874, 46366, 52819, 85748, 92732, 105638, 211276, 301379, 394111, 602758, 788222, 1205516, 1576444, 5123443, 10246886, 20493772]

約数ペア:

[(1, 20493772), (2, 10246886), (4, 5123443), (13, 1576444), (17, 1205516), (26, 788222), (34, 602758), (52, 394111), (68, 301379), (97, 211276), (194, 105638), (221, 92732), (239, 85748), (388, 52819), (442, 46366), (478, 42874), (884, 23183), (956, 21437), (1261, 16252), (1649, 12428), (2522, 8126), (3107, 6596), (3298, 6214), (4063, 5044)]