81657234

素因数分解:

$2^1\times 3^5\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:837

約数の個数: 48

約数和(自身を含む): 184373280

約数和(自身を除く): 102716046

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 401, 419, 486, 802, 838, 1203, 1257, 2406, 2514, 3609, 3771, 7218, 7542, 10827, 11313, 21654, 22626, 32481, 33939, 64962, 67878, 97443, 101817, 168019, 194886, 203634, 336038, 504057, 1008114, 1512171, 3024342, 4536513, 9073026, 13609539, 27219078, 40828617, 81657234]

約数ペア:

[(1, 81657234), (2, 40828617), (3, 27219078), (6, 13609539), (9, 9073026), (18, 4536513), (27, 3024342), (54, 1512171), (81, 1008114), (162, 504057), (243, 336038), (401, 203634), (419, 194886), (486, 168019), (802, 101817), (838, 97443), (1203, 67878), (1257, 64962), (2406, 33939), (2514, 32481), (3609, 22626), (3771, 21654), (7218, 11313), (7542, 10827)]