21001430

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{283}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 39076128

約数和(自身を除く): 18074698

約数列:

[1, 2, 5, 10, 41, 82, 181, 205, 283, 362, 410, 566, 905, 1415, 1810, 2830, 7421, 11603, 14842, 23206, 37105, 51223, 58015, 74210, 102446, 116030, 256115, 512230, 2100143, 4200286, 10500715, 21001430]

約数ペア:

[(1, 21001430), (2, 10500715), (5, 4200286), (10, 2100143), (41, 512230), (82, 256115), (181, 116030), (205, 102446), (283, 74210), (362, 58015), (410, 51223), (566, 37105), (905, 23206), (1415, 14842), (1810, 11603), (2830, 7421)]