21789720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60527}}^1$

素因数の和:60544

約数の個数: 48

約数和(自身を含む): 70817760

約数和(自身を除く): 49028040

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, 60527, 121054, 181581, 242108, 302635, 363162, 484216, 544743, 605270, 726324, 907905, 1089486, 1210540, 1452648, 1815810, 2178972, 2421080, 2723715, 3631620, 4357944, 5447430, 7263240, 10894860, 21789720]

約数ペア:

[(1, 21789720), (2, 10894860), (3, 7263240), (4, 5447430), (5, 4357944), (6, 3631620), (8, 2723715), (9, 2421080), (10, 2178972), (12, 1815810), (15, 1452648), (18, 1210540), (20, 1089486), (24, 907905), (30, 726324), (36, 605270), (40, 544743), (45, 484216), (60, 363162), (72, 302635), (90, 242108), (120, 181581), (180, 121054), (360, 60527)]