19928284

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{17239}}^1$

素因数の和:17277

約数の個数: 18

約数和(自身を含む): 37048760

約数和(自身を除く): 17120476

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 17239, 34478, 68956, 293063, 586126, 1172252, 4982071, 9964142, 19928284]

約数ペア:

[(1, 19928284), (2, 9964142), (4, 4982071), (17, 1172252), (34, 586126), (68, 293063), (289, 68956), (578, 34478), (1156, 17239)]