21076560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:493

約数の個数: 120

約数和(自身を含む): 71930664

約数和(自身を除く): 50854104

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, 73, 80, 90, 120, 144, 146, 180, 219, 240, 292, 360, 365, 401, 438, 584, 657, 720, 730, 802, 876, 1095, 1168, 1203, 1314, 1460, 1604, 1752, 2005, 2190, 2406, 2628, 2920, 3208, 3285, 3504, 3609, 4010, 4380, 4812, 5256, 5840, 6015, 6416, 6570, 7218, 8020, 8760, 9624, 10512, 12030, 13140, 14436, 16040, 17520, 18045, 19248, 24060, 26280, 28872, 29273, 32080, 36090, 48120, 52560, 57744, 58546, 72180, 87819, 96240, 117092, 144360, 146365, 175638, 234184, 263457, 288720, 292730, 351276, 439095, 468368, 526914, 585460, 702552, 878190, 1053828, 1170920, 1317285, 1405104, 1756380, 2107656, 2341840, 2634570, 3512760, 4215312, 5269140, 7025520, 10538280, 21076560]

約数ペア:

[(1, 21076560), (2, 10538280), (3, 7025520), (4, 5269140), (5, 4215312), (6, 3512760), (8, 2634570), (9, 2341840), (10, 2107656), (12, 1756380), (15, 1405104), (16, 1317285), (18, 1170920), (20, 1053828), (24, 878190), (30, 702552), (36, 585460), (40, 526914), (45, 468368), (48, 439095), (60, 351276), (72, 292730), (73, 288720), (80, 263457), (90, 234184), (120, 175638), (144, 146365), (146, 144360), (180, 117092), (219, 96240), (240, 87819), (292, 72180), (360, 58546), (365, 57744), (401, 52560), (438, 48120), (584, 36090), (657, 32080), (720, 29273), (730, 28872), (802, 26280), (876, 24060), (1095, 19248), (1168, 18045), (1203, 17520), (1314, 16040), (1460, 14436), (1604, 13140), (1752, 12030), (2005, 10512), (2190, 9624), (2406, 8760), (2628, 8020), (2920, 7218), (3208, 6570), (3285, 6416), (3504, 6015), (3609, 5840), (4010, 5256), (4380, 4812)]