18954964

素因数分解:

$2^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{997}}^1$

素因数の和:1112

約数の個数: 36

約数和(自身を含む): 39023796

約数和(自身を除く): 20068832

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 194, 196, 388, 679, 997, 1358, 1994, 2716, 3988, 4753, 6979, 9506, 13958, 19012, 27916, 48853, 96709, 97706, 193418, 195412, 386836, 676963, 1353926, 2707852, 4738741, 9477482, 18954964]

約数ペア:

[(1, 18954964), (2, 9477482), (4, 4738741), (7, 2707852), (14, 1353926), (28, 676963), (49, 386836), (97, 195412), (98, 193418), (194, 97706), (196, 96709), (388, 48853), (679, 27916), (997, 19012), (1358, 13958), (1994, 9506), (2716, 6979), (3988, 4753)]