212220464

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{217439}}^1$

素因数の和:217508

約数の個数: 20

約数和(自身を含む): 417919680

約数和(自身を除く): 205699216

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 217439, 434878, 869756, 1739512, 3479024, 13263779, 26527558, 53055116, 106110232, 212220464]

約数ペア:

[(1, 212220464), (2, 106110232), (4, 53055116), (8, 26527558), (16, 13263779), (61, 3479024), (122, 1739512), (244, 869756), (488, 434878), (976, 217439)]