217949498

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{4639}}^1$

素因数の和:4806

約数の個数: 24

約数和(自身を含む): 356630400

約数和(自身を除く): 138680902

約数列:

[1, 2, 13, 26, 139, 169, 278, 338, 1807, 3614, 4639, 9278, 23491, 46982, 60307, 120614, 644821, 783991, 1289642, 1567982, 8382673, 16765346, 108974749, 217949498]

約数ペア:

[(1, 217949498), (2, 108974749), (13, 16765346), (26, 8382673), (139, 1567982), (169, 1289642), (278, 783991), (338, 644821), (1807, 120614), (3614, 60307), (4639, 46982), (9278, 23491)]