21978570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{601}}^1$

素因数の和:687

約数の個数: 64

約数和(自身を含む): 56173824

約数和(自身を除く): 34195254

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 53, 69, 106, 115, 138, 159, 230, 265, 318, 345, 530, 601, 690, 795, 1202, 1219, 1590, 1803, 2438, 3005, 3606, 3657, 6010, 6095, 7314, 9015, 12190, 13823, 18030, 18285, 27646, 31853, 36570, 41469, 63706, 69115, 82938, 95559, 138230, 159265, 191118, 207345, 318530, 414690, 477795, 732619, 955590, 1465238, 2197857, 3663095, 4395714, 7326190, 10989285, 21978570]

約数ペア:

[(1, 21978570), (2, 10989285), (3, 7326190), (5, 4395714), (6, 3663095), (10, 2197857), (15, 1465238), (23, 955590), (30, 732619), (46, 477795), (53, 414690), (69, 318530), (106, 207345), (115, 191118), (138, 159265), (159, 138230), (230, 95559), (265, 82938), (318, 69115), (345, 63706), (530, 41469), (601, 36570), (690, 31853), (795, 27646), (1202, 18285), (1219, 18030), (1590, 13823), (1803, 12190), (2438, 9015), (3005, 7314), (3606, 6095), (3657, 6010)]