21099834

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1109}}^1$

素因数の和:1275

約数の個数: 48

約数和(自身を含む): 52640640

約数和(自身を除く): 31540806

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 151, 302, 453, 906, 1057, 1109, 1359, 2114, 2218, 2718, 3171, 3327, 6342, 6654, 7763, 9513, 9981, 15526, 19026, 19962, 23289, 46578, 69867, 139734, 167459, 334918, 502377, 1004754, 1172213, 1507131, 2344426, 3014262, 3516639, 7033278, 10549917, 21099834]

約数ペア:

[(1, 21099834), (2, 10549917), (3, 7033278), (6, 3516639), (7, 3014262), (9, 2344426), (14, 1507131), (18, 1172213), (21, 1004754), (42, 502377), (63, 334918), (126, 167459), (151, 139734), (302, 69867), (453, 46578), (906, 23289), (1057, 19962), (1109, 19026), (1359, 15526), (2114, 9981), (2218, 9513), (2718, 7763), (3171, 6654), (3327, 6342)]