21269460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3313}}^1$

素因数の和:3432

約数の個数: 48

約数和(自身を含む): 60129216

約数和(自身を除く): 38859756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 107, 214, 321, 428, 535, 642, 1070, 1284, 1605, 2140, 3210, 3313, 6420, 6626, 9939, 13252, 16565, 19878, 33130, 39756, 49695, 66260, 99390, 198780, 354491, 708982, 1063473, 1417964, 1772455, 2126946, 3544910, 4253892, 5317365, 7089820, 10634730, 21269460]

約数ペア:

[(1, 21269460), (2, 10634730), (3, 7089820), (4, 5317365), (5, 4253892), (6, 3544910), (10, 2126946), (12, 1772455), (15, 1417964), (20, 1063473), (30, 708982), (60, 354491), (107, 198780), (214, 99390), (321, 66260), (428, 49695), (535, 39756), (642, 33130), (1070, 19878), (1284, 16565), (1605, 13252), (2140, 9939), (3210, 6626), (3313, 6420)]