21739251842

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{287503}}^1$

素因数の和:288014

約数の個数: 32

約数和(自身を含む): 40738166784

約数和(自身を除く): 18998914942

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 491, 982, 3437, 5401, 6874, 10802, 37807, 75614, 287503, 575006, 2012521, 3162533, 4025042, 6325066, 22137731, 44275462, 141163973, 282327946, 988147811, 1552803703, 1976295622, 3105607406, 10869625921, 21739251842]

約数ペア:

[(1, 21739251842), (2, 10869625921), (7, 3105607406), (11, 1976295622), (14, 1552803703), (22, 988147811), (77, 282327946), (154, 141163973), (491, 44275462), (982, 22137731), (3437, 6325066), (5401, 4025042), (6874, 3162533), (10802, 2012521), (37807, 575006), (75614, 287503)]