21809892

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{557}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 55121472

約数和(自身を除く): 33311580

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 251, 502, 557, 753, 1004, 1114, 1506, 1671, 2228, 3012, 3263, 3342, 6526, 6684, 7241, 9789, 13052, 14482, 19578, 21723, 28964, 39156, 43446, 86892, 139807, 279614, 419421, 559228, 838842, 1677684, 1817491, 3634982, 5452473, 7269964, 10904946, 21809892]

約数ペア:

[(1, 21809892), (2, 10904946), (3, 7269964), (4, 5452473), (6, 3634982), (12, 1817491), (13, 1677684), (26, 838842), (39, 559228), (52, 419421), (78, 279614), (156, 139807), (251, 86892), (502, 43446), (557, 39156), (753, 28964), (1004, 21723), (1114, 19578), (1506, 14482), (1671, 13052), (2228, 9789), (3012, 7241), (3263, 6684), (3342, 6526)]