21409941

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2333}}^1$

素因数の和:2385

約数の個数: 32

約数和(自身を含む): 35850240

約数和(自身を除く): 14440299

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 2333, 3059, 6999, 9177, 16331, 44327, 48993, 53659, 132981, 160977, 310289, 375613, 930867, 1019521, 1126839, 3058563, 7136647, 21409941]

約数ペア:

[(1, 21409941), (3, 7136647), (7, 3058563), (19, 1126839), (21, 1019521), (23, 930867), (57, 375613), (69, 310289), (133, 160977), (161, 132981), (399, 53659), (437, 48993), (483, 44327), (1311, 16331), (2333, 9177), (3059, 6999)]