79801281

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^2\times {\mathrm{487}}^1$

素因数の和:540

約数の個数: 60

約数和(自身を含む): 145021888

約数和(自身を除く): 65220607

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 289, 357, 459, 487, 567, 867, 1071, 1377, 1461, 2023, 2601, 3213, 3409, 4383, 6069, 7803, 8279, 9639, 10227, 13149, 18207, 23409, 24837, 30681, 39447, 54621, 57953, 74511, 92043, 140743, 163863, 173859, 223533, 276129, 422229, 521577, 670599, 985201, 1266687, 1564731, 2955603, 3800061, 4694193, 8866809, 11400183, 26600427, 79801281]

約数ペア:

[(1, 79801281), (3, 26600427), (7, 11400183), (9, 8866809), (17, 4694193), (21, 3800061), (27, 2955603), (51, 1564731), (63, 1266687), (81, 985201), (119, 670599), (153, 521577), (189, 422229), (289, 276129), (357, 223533), (459, 173859), (487, 163863), (567, 140743), (867, 92043), (1071, 74511), (1377, 57953), (1461, 54621), (2023, 39447), (2601, 30681), (3213, 24837), (3409, 23409), (4383, 18207), (6069, 13149), (7803, 10227), (8279, 9639)]