21394680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178289}}^1$

素因数の和:178303

約数の個数: 32

約数和(自身を含む): 64184400

約数和(自身を除く): 42789720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178289, 356578, 534867, 713156, 891445, 1069734, 1426312, 1782890, 2139468, 2674335, 3565780, 4278936, 5348670, 7131560, 10697340, 21394680]

約数ペア:

[(1, 21394680), (2, 10697340), (3, 7131560), (4, 5348670), (5, 4278936), (6, 3565780), (8, 2674335), (10, 2139468), (12, 1782890), (15, 1426312), (20, 1069734), (24, 891445), (30, 713156), (40, 534867), (60, 356578), (120, 178289)]