87876981

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:663

約数の個数: 40

約数和(自身を含む): 137579904

約数和(自身を除く): 49702923

約数列:

[1, 3, 9, 27, 41, 47, 81, 123, 141, 369, 423, 563, 1107, 1269, 1689, 1927, 3321, 3807, 5067, 5781, 15201, 17343, 23083, 26461, 45603, 52029, 69249, 79383, 156087, 207747, 238149, 623241, 714447, 1084901, 1869723, 2143341, 3254703, 9764109, 29292327, 87876981]

約数ペア:

[(1, 87876981), (3, 29292327), (9, 9764109), (27, 3254703), (41, 2143341), (47, 1869723), (81, 1084901), (123, 714447), (141, 623241), (369, 238149), (423, 207747), (563, 156087), (1107, 79383), (1269, 69249), (1689, 52029), (1927, 45603), (3321, 26461), (3807, 23083), (5067, 17343), (5781, 15201)]