21116520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58657}}^1$

素因数の和:58674

約数の個数: 48

約数和(自身を含む): 68629860

約数和(自身を除く): 47513340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 58657, 117314, 175971, 234628, 293285, 351942, 469256, 527913, 586570, 703884, 879855, 1055826, 1173140, 1407768, 1759710, 2111652, 2346280, 2639565, 3519420, 4223304, 5279130, 7038840, 10558260, 21116520]

約数ペア:

[(1, 21116520), (2, 10558260), (3, 7038840), (4, 5279130), (5, 4223304), (6, 3519420), (8, 2639565), (9, 2346280), (10, 2111652), (12, 1759710), (15, 1407768), (18, 1173140), (20, 1055826), (24, 879855), (30, 703884), (36, 586570), (40, 527913), (45, 469256), (60, 351942), (72, 293285), (90, 234628), (120, 175971), (180, 117314), (360, 58657)]