21123504

素因数分解:

$2^4\times 3^6\times {\mathrm{1811}}^1$

素因数の和:1837

約数の個数: 70

約数和(自身を含む): 61395996

約数和(自身を除く): 40272492

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 243, 324, 432, 486, 648, 729, 972, 1296, 1458, 1811, 1944, 2916, 3622, 3888, 5433, 5832, 7244, 10866, 11664, 14488, 16299, 21732, 28976, 32598, 43464, 48897, 65196, 86928, 97794, 130392, 146691, 195588, 260784, 293382, 391176, 440073, 586764, 782352, 880146, 1173528, 1320219, 1760292, 2347056, 2640438, 3520584, 5280876, 7041168, 10561752, 21123504]

約数ペア:

[(1, 21123504), (2, 10561752), (3, 7041168), (4, 5280876), (6, 3520584), (8, 2640438), (9, 2347056), (12, 1760292), (16, 1320219), (18, 1173528), (24, 880146), (27, 782352), (36, 586764), (48, 440073), (54, 391176), (72, 293382), (81, 260784), (108, 195588), (144, 146691), (162, 130392), (216, 97794), (243, 86928), (324, 65196), (432, 48897), (486, 43464), (648, 32598), (729, 28976), (972, 21732), (1296, 16299), (1458, 14488), (1811, 11664), (1944, 10866), (2916, 7244), (3622, 5832), (3888, 5433)]