1389723741

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{761}}^1$

素因数の和:923

約数の個数: 72

約数和(自身を含む): 2418926328

約数和(自身を除く): 1029202587

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 101, 123, 147, 287, 303, 369, 441, 707, 761, 861, 909, 2009, 2121, 2283, 2583, 4141, 4949, 5327, 6027, 6363, 6849, 12423, 14847, 15981, 18081, 28987, 31201, 37269, 37289, 44541, 47943, 76861, 86961, 93603, 111867, 202909, 218407, 230583, 260883, 280809, 335601, 538027, 608727, 655221, 691749, 1528849, 1614081, 1826181, 1965663, 3151301, 3766189, 4586547, 4842243, 9453903, 11298567, 13759641, 22059107, 28361709, 33895701, 66177321, 154413749, 198531963, 463241247, 1389723741]

約数ペア:

[(1, 1389723741), (3, 463241247), (7, 198531963), (9, 154413749), (21, 66177321), (41, 33895701), (49, 28361709), (63, 22059107), (101, 13759641), (123, 11298567), (147, 9453903), (287, 4842243), (303, 4586547), (369, 3766189), (441, 3151301), (707, 1965663), (761, 1826181), (861, 1614081), (909, 1528849), (2009, 691749), (2121, 655221), (2283, 608727), (2583, 538027), (4141, 335601), (4949, 280809), (5327, 260883), (6027, 230583), (6363, 218407), (6849, 202909), (12423, 111867), (14847, 93603), (15981, 86961), (18081, 76861), (28987, 47943), (31201, 44541), (37269, 37289)]