81913356

素因数分解:

$2^2\times 3^6\times 7^1\times {\mathrm{4013}}^1$

素因数の和:4042

約数の個数: 84

約数和(自身を含む): 245688912

約数和(自身を除く): 163775556

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 378, 486, 567, 729, 756, 972, 1134, 1458, 1701, 2268, 2916, 3402, 4013, 5103, 6804, 8026, 10206, 12039, 16052, 20412, 24078, 28091, 36117, 48156, 56182, 72234, 84273, 108351, 112364, 144468, 168546, 216702, 252819, 325053, 337092, 433404, 505638, 650106, 758457, 975159, 1011276, 1300212, 1516914, 1950318, 2275371, 2925477, 3033828, 3900636, 4550742, 5850954, 6826113, 9101484, 11701908, 13652226, 20478339, 27304452, 40956678, 81913356]

約数ペア:

[(1, 81913356), (2, 40956678), (3, 27304452), (4, 20478339), (6, 13652226), (7, 11701908), (9, 9101484), (12, 6826113), (14, 5850954), (18, 4550742), (21, 3900636), (27, 3033828), (28, 2925477), (36, 2275371), (42, 1950318), (54, 1516914), (63, 1300212), (81, 1011276), (84, 975159), (108, 758457), (126, 650106), (162, 505638), (189, 433404), (243, 337092), (252, 325053), (324, 252819), (378, 216702), (486, 168546), (567, 144468), (729, 112364), (756, 108351), (972, 84273), (1134, 72234), (1458, 56182), (1701, 48156), (2268, 36117), (2916, 28091), (3402, 24078), (4013, 20412), (5103, 16052), (6804, 12039), (8026, 10206)]