19864772

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{4789}}^1$

素因数の和:4871

約数の個数: 24

約数和(自身を含む): 37419480

約数和(自身を除く): 17554708

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 4789, 9578, 19156, 81413, 162826, 292129, 325652, 584258, 1168516, 4966193, 9932386, 19864772]

約数ペア:

[(1, 19864772), (2, 9932386), (4, 4966193), (17, 1168516), (34, 584258), (61, 325652), (68, 292129), (122, 162826), (244, 81413), (1037, 19156), (2074, 9578), (4148, 4789)]