21507768

素因数分解:

$2^3\times 3^4\times {\mathrm{33191}}^1$

素因数の和:33209

約数の個数: 40

約数和(自身を含む): 60243480

約数和(自身を除く): 38735712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 33191, 66382, 99573, 132764, 199146, 265528, 298719, 398292, 597438, 796584, 896157, 1194876, 1792314, 2389752, 2688471, 3584628, 5376942, 7169256, 10753884, 21507768]

約数ペア:

[(1, 21507768), (2, 10753884), (3, 7169256), (4, 5376942), (6, 3584628), (8, 2688471), (9, 2389752), (12, 1792314), (18, 1194876), (24, 896157), (27, 796584), (36, 597438), (54, 398292), (72, 298719), (81, 265528), (108, 199146), (162, 132764), (216, 99573), (324, 66382), (648, 33191)]