19802744

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 40889520

約数和(自身を除く): 21086776

約数列:

[1, 2, 4, 8, 13, 26, 52, 97, 104, 151, 169, 194, 302, 338, 388, 604, 676, 776, 1208, 1261, 1352, 1963, 2522, 3926, 5044, 7852, 10088, 14647, 15704, 16393, 25519, 29294, 32786, 51038, 58588, 65572, 102076, 117176, 131144, 190411, 204152, 380822, 761644, 1523288, 2475343, 4950686, 9901372, 19802744]

約数ペア:

[(1, 19802744), (2, 9901372), (4, 4950686), (8, 2475343), (13, 1523288), (26, 761644), (52, 380822), (97, 204152), (104, 190411), (151, 131144), (169, 117176), (194, 102076), (302, 65572), (338, 58588), (388, 51038), (604, 32786), (676, 29294), (776, 25519), (1208, 16393), (1261, 15704), (1352, 14647), (1963, 10088), (2522, 7852), (3926, 5044)]