21244626

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 51891840

約数和(自身を除く): 30647214

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 53, 54, 78, 106, 117, 159, 234, 318, 351, 477, 571, 689, 702, 954, 1142, 1378, 1431, 1713, 2067, 2862, 3426, 4134, 5139, 6201, 7423, 10278, 12402, 14846, 15417, 18603, 22269, 30263, 30834, 37206, 44538, 60526, 66807, 90789, 133614, 181578, 200421, 272367, 393419, 400842, 544734, 786838, 817101, 1180257, 1634202, 2360514, 3540771, 7081542, 10622313, 21244626]

約数ペア:

[(1, 21244626), (2, 10622313), (3, 7081542), (6, 3540771), (9, 2360514), (13, 1634202), (18, 1180257), (26, 817101), (27, 786838), (39, 544734), (53, 400842), (54, 393419), (78, 272367), (106, 200421), (117, 181578), (159, 133614), (234, 90789), (318, 66807), (351, 60526), (477, 44538), (571, 37206), (689, 30834), (702, 30263), (954, 22269), (1142, 18603), (1378, 15417), (1431, 14846), (1713, 12402), (2067, 10278), (2862, 7423), (3426, 6201), (4134, 5139)]