21007030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{541}}^1$

素因数の和:912

約数の個数: 32

約数和(自身を含む): 41443488

約数和(自身を除く): 20436458

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 353, 541, 706, 1082, 1765, 2705, 3530, 3883, 5410, 5951, 7766, 11902, 19415, 29755, 38830, 59510, 190973, 381946, 954865, 1909730, 2100703, 4201406, 10503515, 21007030]

約数ペア:

[(1, 21007030), (2, 10503515), (5, 4201406), (10, 2100703), (11, 1909730), (22, 954865), (55, 381946), (110, 190973), (353, 59510), (541, 38830), (706, 29755), (1082, 19415), (1765, 11902), (2705, 7766), (3530, 5951), (3883, 5410)]