21060720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29251}}^1$

素因数の和:29270

約数の個数: 60

約数和(自身を含む): 70731336

約数和(自身を除く): 49670616

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29251, 58502, 87753, 117004, 146255, 175506, 234008, 263259, 292510, 351012, 438765, 468016, 526518, 585020, 702024, 877530, 1053036, 1170040, 1316295, 1404048, 1755060, 2106072, 2340080, 2632590, 3510120, 4212144, 5265180, 7020240, 10530360, 21060720]

約数ペア:

[(1, 21060720), (2, 10530360), (3, 7020240), (4, 5265180), (5, 4212144), (6, 3510120), (8, 2632590), (9, 2340080), (10, 2106072), (12, 1755060), (15, 1404048), (16, 1316295), (18, 1170040), (20, 1053036), (24, 877530), (30, 702024), (36, 585020), (40, 526518), (45, 468016), (48, 438765), (60, 351012), (72, 292510), (80, 263259), (90, 234008), (120, 175506), (144, 146255), (180, 117004), (240, 87753), (360, 58502), (720, 29251)]