21780903370

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1912283}}^1$

素因数の和:1912374

約数の個数: 32

約数和(自身を含む): 42131441088

約数和(自身を除く): 20350537718

約数列:

[1, 2, 5, 10, 17, 34, 67, 85, 134, 170, 335, 670, 1139, 2278, 5695, 11390, 1912283, 3824566, 9561415, 19122830, 32508811, 65017622, 128122961, 162544055, 256245922, 325088110, 640614805, 1281229610, 2178090337, 4356180674, 10890451685, 21780903370]

約数ペア:

[(1, 21780903370), (2, 10890451685), (5, 4356180674), (10, 2178090337), (17, 1281229610), (34, 640614805), (67, 325088110), (85, 256245922), (134, 162544055), (170, 128122961), (335, 65017622), (670, 32508811), (1139, 19122830), (2278, 9561415), (5695, 3824566), (11390, 1912283)]