81672867

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:365

約数の個数: 40

約数和(自身を含む): 126498240

約数和(自身を除く): 44825373

約数列:

[1, 3, 9, 27, 43, 81, 129, 131, 179, 387, 393, 537, 1161, 1179, 1611, 3483, 3537, 4833, 5633, 7697, 10611, 14499, 16899, 23091, 23449, 50697, 69273, 70347, 152091, 207819, 211041, 456273, 623457, 633123, 1008307, 1899369, 3024921, 9074763, 27224289, 81672867]

約数ペア:

[(1, 81672867), (3, 27224289), (9, 9074763), (27, 3024921), (43, 1899369), (81, 1008307), (129, 633123), (131, 623457), (179, 456273), (387, 211041), (393, 207819), (537, 152091), (1161, 70347), (1179, 69273), (1611, 50697), (3483, 23449), (3537, 23091), (4833, 16899), (5633, 14499), (7697, 10611)]