15721974

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{269}}^1$

素因数の和:485

約数の個数: 48

約数和(自身を含む): 36391680

約数和(自身を除く): 20669706

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 191, 269, 306, 382, 538, 573, 807, 1146, 1614, 1719, 2421, 3247, 3438, 4573, 4842, 6494, 9146, 9741, 13719, 19482, 27438, 29223, 41157, 51379, 58446, 82314, 102758, 154137, 308274, 462411, 873443, 924822, 1746886, 2620329, 5240658, 7860987, 15721974]

約数ペア:

[(1, 15721974), (2, 7860987), (3, 5240658), (6, 2620329), (9, 1746886), (17, 924822), (18, 873443), (34, 462411), (51, 308274), (102, 154137), (153, 102758), (191, 82314), (269, 58446), (306, 51379), (382, 41157), (538, 29223), (573, 27438), (807, 19482), (1146, 13719), (1614, 9741), (1719, 9146), (2421, 6494), (3247, 4842), (3438, 4573)]