21240900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{7867}}^1$

素因数の和:7890

約数の個数: 72

約数和(自身を含む): 68294240

約数和(自身を除く): 47053340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 135, 150, 180, 225, 270, 300, 450, 540, 675, 900, 1350, 2700, 7867, 15734, 23601, 31468, 39335, 47202, 70803, 78670, 94404, 118005, 141606, 157340, 196675, 212409, 236010, 283212, 354015, 393350, 424818, 472020, 590025, 708030, 786700, 849636, 1062045, 1180050, 1416060, 1770075, 2124090, 2360100, 3540150, 4248180, 5310225, 7080300, 10620450, 21240900]

約数ペア:

[(1, 21240900), (2, 10620450), (3, 7080300), (4, 5310225), (5, 4248180), (6, 3540150), (9, 2360100), (10, 2124090), (12, 1770075), (15, 1416060), (18, 1180050), (20, 1062045), (25, 849636), (27, 786700), (30, 708030), (36, 590025), (45, 472020), (50, 424818), (54, 393350), (60, 354015), (75, 283212), (90, 236010), (100, 212409), (108, 196675), (135, 157340), (150, 141606), (180, 118005), (225, 94404), (270, 78670), (300, 70803), (450, 47202), (540, 39335), (675, 31468), (900, 23601), (1350, 15734), (2700, 7867)]