12781314

素因数分解:

$2^1\times 3^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:71

約数の個数: 144

約数和(自身を含む): 37547328

約数和(自身を除く): 24766014

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 17, 18, 21, 26, 27, 34, 39, 42, 51, 54, 63, 78, 81, 91, 102, 117, 119, 126, 153, 162, 182, 189, 221, 234, 238, 243, 273, 289, 306, 351, 357, 378, 442, 459, 486, 546, 567, 578, 663, 702, 714, 819, 867, 918, 1053, 1071, 1134, 1326, 1377, 1547, 1638, 1701, 1734, 1989, 2023, 2106, 2142, 2457, 2601, 2754, 3094, 3159, 3213, 3402, 3757, 3978, 4046, 4131, 4641, 4914, 5202, 5967, 6069, 6318, 6426, 7371, 7514, 7803, 8262, 9282, 9639, 11271, 11934, 12138, 13923, 14742, 15606, 17901, 18207, 19278, 22113, 22542, 23409, 26299, 27846, 28917, 33813, 35802, 36414, 41769, 44226, 46818, 52598, 53703, 54621, 57834, 67626, 70227, 78897, 83538, 101439, 107406, 109242, 125307, 140454, 157794, 163863, 202878, 236691, 250614, 304317, 327726, 375921, 473382, 491589, 608634, 710073, 751842, 912951, 983178, 1420146, 1825902, 2130219, 4260438, 6390657, 12781314]

約数ペア:

[(1, 12781314), (2, 6390657), (3, 4260438), (6, 2130219), (7, 1825902), (9, 1420146), (13, 983178), (14, 912951), (17, 751842), (18, 710073), (21, 608634), (26, 491589), (27, 473382), (34, 375921), (39, 327726), (42, 304317), (51, 250614), (54, 236691), (63, 202878), (78, 163863), (81, 157794), (91, 140454), (102, 125307), (117, 109242), (119, 107406), (126, 101439), (153, 83538), (162, 78897), (182, 70227), (189, 67626), (221, 57834), (234, 54621), (238, 53703), (243, 52598), (273, 46818), (289, 44226), (306, 41769), (351, 36414), (357, 35802), (378, 33813), (442, 28917), (459, 27846), (486, 26299), (546, 23409), (567, 22542), (578, 22113), (663, 19278), (702, 18207), (714, 17901), (819, 15606), (867, 14742), (918, 13923), (1053, 12138), (1071, 11934), (1134, 11271), (1326, 9639), (1377, 9282), (1547, 8262), (1638, 7803), (1701, 7514), (1734, 7371), (1989, 6426), (2023, 6318), (2106, 6069), (2142, 5967), (2457, 5202), (2601, 4914), (2754, 4641), (3094, 4131), (3159, 4046), (3213, 3978), (3402, 3757)]