21291120

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9857}}^1$

素因数の和:9879

約数の個数: 80

約数和(自身を含む): 73343520

約数和(自身を除く): 52052400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9857, 19714, 29571, 39428, 49285, 59142, 78856, 88713, 98570, 118284, 147855, 157712, 177426, 197140, 236568, 266139, 295710, 354852, 394280, 443565, 473136, 532278, 591420, 709704, 788560, 887130, 1064556, 1182840, 1330695, 1419408, 1774260, 2129112, 2365680, 2661390, 3548520, 4258224, 5322780, 7097040, 10645560, 21291120]

約数ペア:

[(1, 21291120), (2, 10645560), (3, 7097040), (4, 5322780), (5, 4258224), (6, 3548520), (8, 2661390), (9, 2365680), (10, 2129112), (12, 1774260), (15, 1419408), (16, 1330695), (18, 1182840), (20, 1064556), (24, 887130), (27, 788560), (30, 709704), (36, 591420), (40, 532278), (45, 473136), (48, 443565), (54, 394280), (60, 354852), (72, 295710), (80, 266139), (90, 236568), (108, 197140), (120, 177426), (135, 157712), (144, 147855), (180, 118284), (216, 98570), (240, 88713), (270, 78856), (360, 59142), (432, 49285), (540, 39428), (720, 29571), (1080, 19714), (2160, 9857)]