661402

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:430

約数の個数: 24

約数和(自身を含む): 1225044

約数和(自身を除く): 563642

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 397, 794, 833, 1666, 2779, 5558, 6749, 13498, 19453, 38906, 47243, 94486, 330701, 661402]

約数ペア:

[(1, 661402), (2, 330701), (7, 94486), (14, 47243), (17, 38906), (34, 19453), (49, 13498), (98, 6749), (119, 5558), (238, 2779), (397, 1666), (794, 833)]